Enable JavaScript to run this app.
Skip to main content
OpenTable logo
East Side Mario's- Waterloo, Waterloo, ON

East Side Mario's- Waterloo

3.7 (563)
CAN$30 and under
Italian
450 King St N, Waterloo, ON N2J 2Z6

Make a reservation

A photo of East Side Mario's- Waterloo restaurant

East Side Mario's- Waterloo

3.7
CAN$30 and under
Italian
Waterloo

Make a reservation

2 people
7:00 PM
Booked 9 times today

About this restaurant

  • Good for groups
  • Lively
  • Kid-friendly
At East Side Mario's Waterloo restaurant, we're passionate about three things: food, famiglia, and fun. Make every family meal a special occasion at East Side Mario's, where good food and great company come together to create lasting memories and let our family handle the cleanup. With generous portions and a warm, inviting atmosphere, our hand gestures are as grand as our love for family. Whether you're looking for a restaurant dine-in experience for lunch and dinner or prefer the convenience of takeout or delivery, we cater to every preference. Come join us and enjoy All-You-Can-Eat, featuring Soup, Salad, and Garlic Homeloaf, Mario's mouthwatering Chicken Parmigiana, signature pizzas and classic Italian-American favourites that will have you saying, "Mama Mia!"

Dining areas

Additional information

  • Dining style
    Casual Dining
  • Price
    CAN$30 and under
  • Cuisines
    Italian, American, Canadian
  • Hours of operation
    Mon–Thu, Sun 11:00 am–10:00 pm Fri, Sat 11:00 am–11:00 pm
  • Phone number
  • Payment options
    AMEX, Mastercard, Visa
  • Dress code
    Casual Dress
  • Private party facilities
    We offer private event space and party menus. Please call us at 519.886.8388 or email us at esm8664@recipeunlimited.com for more details.
  • Delivery & takeout
  • Neighborhood
    Waterloo
  • Cross street
    North of the of the King St. N. and Weber St. N. intersection
  • Parking details
    Private Lot
  • Additional
    Bar Dining, Bar/Lounge, Beer, Cocktails, Delivery, Full Bar, Gluten-free Options, Non-Smoking, Private Room, Takeout, Vegan, Wheelchair Access, Wine

Concierge
AI Beta

Our AI assistant, Concierge, is here to answer your questions about this restaurant.

Reviews

OpenTable reviews from verified diners

Reviews from people who have dined at East Side Mario's- Waterloo.

3.7

3.7
(563)
  • 3.7Food
  • 3.9Service
  • 3.5Ambience
  • 3.7Value

Noise • Moderate

Loved For

  • Southern Ontario

    Kid-friendly

  • Southern Ontario

    Hot spot

Review summary

AI-generated from verified diner reviews
East Side Mario's in Waterloo is cherished for its friendly atmosphere and "great service." Guests appreciate the "delicious food" and "quick service," especially the unlimited bread and salad. Regulars value the restaurant's nostalgic charm and consistent experiences over the years. Despite occasional hiccups, it's a beloved local spot.
563 Reviews
  1. Taylor

    Toronto4 reviews

    4.0

    Dined 3 days ago

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 4
    Experience was good! We got in 15 minutes earlier than our reservation, Tori had food service and food tasted great!

    Is this helpful?

  2. Bsrb

    Toronto1 review

    2.0

    Dined on October 30, 2026

    1. Overall 2
    2. Food 5
    3. Service 2
    4. Ambience 5
    Very good value for the money. fun, friendly staff

    Is this helpful?

  3. B

    Toronto2 reviews

    5.0

    Dined on October 23, 2026

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We have been visiting this restaurant for over a decade and have always enjoyed coming here. It has been a familiar place for us over the years, and we appreciate the memories and experiences we’ve had. We hope to continue enjoying good food and great service here for many more years to come.

    Is this helpful?

  4. Sheila

    Toronto1 review

    5.0

    Dined on October 22, 2026

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The foods were great and really good service. Order was served fast. Friendly service.

    Is this helpful?

  5. Daryl

    Toronto4 reviews

    5.0

    Dined on October 18, 2026

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Our waitress was excellent. Food was delicious.

    Is this helpful?

  6. Alison

    Toronto1 review

    1.0

    Dined on October 17, 2026

    1. Overall 1
    2. Food 1
    3. Service 1
    4. Ambience 3
    I can’t rate the food because I didn’t get to have my main course. It arrived, but it was incorrect so it was taken back. There were two large groups that came in and from that point on we never saw our waitress. When she came back 3/4 of an hour later and asked us how our food was. I said I never got my main dish back. She said she could have it made quickly and boxed up, but I didn’t want to eat it the next day. I wanted to eat it then but we had tickets for a show and had to get going. Someone was helping her bringing drinks and giving out the check but between the two of them communication broke down and my meal was missed.

    Is this helpful?

  7. Cheryl Gold

    Toronto3 reviews

    2.0

    Dined on October 10, 2026

    1. Overall 2
    2. Food 3
    3. Service 5
    4. Ambience 2
    Service was fantastic, but experience was compromised by the number of fruit flies or midgies everywhere. So unfortunate.

    Is this helpful?

  8. Katja

    Toronto3 reviews

    4.0

    Dined on October 9, 2026

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 3
    Good place To eat diner or lunch Yayyyy so good yum

    Is this helpful?

  9. PHILIP

    Detroit5 reviews

    5.0

    Dined on September 28, 2026

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Love their chicken parm. Went for date night and really enjoyed our meals. Plus the 10% off for CAA members and/or Scene points. All you can eat bread and salad as part of the meals is also an added plus.

    Is this helpful?

  10. Kim

    Toronto2 reviews

    2.0

    Dined on September 28, 2026

    1. Overall 2
    2. Food 3
    3. Service 2
    4. Ambience 3
    I made reservations for 6 for my daughter’s birthday. (Even stating that with the online reservation). We were placed in the bar area, which was ok, not preferred as it was right by the door and was chilly. The waitress brought the bread pretty quickly, however we didn’t get plates for the bread. It took quite awhile until the waitress came back to our table where I asked for plates. They brought out 1/2 the tables salads. The rest waited for 15 minutes for theirs. No one was offered grated cheese. We had to ask for that as well. My daughter ordered a dish and asked for no mushrooms, the meal came to her with mushrooms and barely any sauce. Another meal the noodles were 1/2 cooked. When the mains came out everyone got their meal except for 1 person who had to wait 10 minutes for theirs. We come to Eastside Mario’s frequently, as we have always been 100% satisfied with service and the food. Today, however was the opposite. The bar area was not busy. There were maybe 2 other tables with people. The waitress called us Hun & Dear, which, personally I didn’t like. The waitress didn’t acknowledge the birthday at all. Even though it was on the reservation. Sad to say, but this visit was a thumbs down. Too many negatives that outweighed the positives.

    Is this helpful?

Dining areas

Additional information

  • Dining style
    Casual Dining
  • Price
    CAN$30 and under
  • Cuisines
    Italian, American, Canadian
  • Hours of operation
    Mon–Thu, Sun 11:00 am–10:00 pm Fri, Sat 11:00 am–11:00 pm
  • Phone number
  • Payment options
    AMEX, Mastercard, Visa
  • Dress code
    Casual Dress
  • Private party facilities
    We offer private event space and party menus. Please call us at 519.886.8388 or email us at esm8664@recipeunlimited.com for more details.
  • Delivery & takeout
  • Neighborhood
    Waterloo
  • Cross street
    North of the of the King St. N. and Weber St. N. intersection
  • Parking details
    Private Lot
  • Additional
    Bar Dining, Bar/Lounge, Beer, Cocktails, Delivery, Full Bar, Gluten-free Options, Non-Smoking, Private Room, Takeout, Vegan, Wheelchair Access, Wine

FAQs

East Side Mario's is known for generous portions, the restaurant description highlights "generous portions, " and guests have described the food as "massive."

Casual dress, comfortable, informal clothing is appropriate for this casual‑dining location.

Yes, the Waterloo location has a patio; guests note the patio is usually less noisy, making it a pleasant alternative to the main dining room.

Yes, you can order a pizza on East Side Mario's gluten-free 10" cauliflower crust, and the Roasted Garlic Tomato Soup is prepared in a vegetarian broth.

East Side Mario's – Waterloo – King offers a warm, family-friendly, casual-dining atmosphere where friendly servers and generous portions set a convivial tone; the patio is noted as a quieter spot.

Mario's Chicken Parmigiana is a stand-out, the restaurant highlights it on the menu and guests praise it as hot, tasty, and generously portioned.

Yes, guests report successful Valentine's Day visits at East Side Mario's, and the menu includes a wine list, making it a relaxed, casual option for a low-key date night.

Wednesdays are a great pick for value thanks to Kids Eat Free, while Friday nights are popular for group dinners and get-togethers.

Yes, families are well catered to here: the menu includes a dedicated Kids section (MINI MARIOS), and multiple reviewers describe enjoyable family outings with kids.

How FAQ content is generated

  1. Home
  2. Canada
  3. Toronto / Ontario
  4. Southern Ontario
  5. Waterloo

Make a reservation

A photo of East Side Mario's- Waterloo restaurant

East Side Mario's- Waterloo

3.7
CAN$30 and under
Italian
Waterloo

Make a reservation

2 people
7:00 PM
Booked 9 times today
Discover
OpenTable
  • About Us
  • Blog
  • Careers
  • Press
More
Businesses
  • Restaurant Management Solutions
  • Restaurant Reservation Software
  • Restaurant Marketing Software
  • Restaurant Event Software
  • OpenTable For Restaurants
  • OpenTable For Restaurant Groups
  • OpenTable Pricing & Plans
Join us on
  • Privacy Policy
  • Terms of Use
  • Cookies and Interest-Based Ads
  • Accessibility Statement
  • Cookie Preferences
Copyright © 2026 OpenTable, Inc. 425 Market St Ste 1200, San Francisco CA 94105 - All rights reserved.
OpenTable is part of Booking Holdings, the world leader in online travel and related services.
Booking Logo
Priceline Logo
KAYAK Logo
Agoda Logo
OpenTable Logo