Pizza is our featured product, and we also have appetizers, pastas, sandwiches, salads, and ice cream! Come on in and give us a try, or pick it up at our carry-out window!
Online ordering available as well, featuring an additional 10% off through 2021
Based on 91 reviews, the restaurant has received a rating of 4.3 stars. Price
✔️ Dine-in ✔️ Drive-through
Address:
601 S Main St, Monticello, IA 52310
Phone: (319) 465-5477
Social Profile: 
Hours
| Sunday | 10 AM–10 PM |
| Monday
(Labor Day)
|
11 AM–9 PM
Hours might differ
|
| Tuesday | 11 AM–7 PM |
| Wednesday | 11 AM–7 PM |
| Thursday | 11 AM–9 PM |
| Friday | 11 AM–10 PM |
| Saturday | 11 AM–10 PM |
Reviews
Erin Rowan
We were promptly seated at a dirty table and got drinks. We wait an hour for our pizzas and only time server was at our table was when we waved for his attention so we could get refills on drinks. During this, we were hearing someone with takeout asking if their order was forgotten because it was taking so long. Pizza tasted ok, but we got gluten-free and member of our party got sick so there was definitely cross-contamination. All around poor experience.
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Elliot Koppenhaver
Good food, friendly staff all in a nice clean restaurant. They have a small arcade area to keep kids entertained and they STILL have the train that follows along the ceiling/walls. 26 years ago when I was kid they (Happy Joe’s) had that train. Love it.
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Jo Provencher
Our sales rep brought in pizza and breadsticks for us from here today. Wow! Everyone really enjoyed the pepperoni, meat lovers pizza and cheese breadsticks! We will definitely be going in person sometime!
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Stacey Wilcox
This place has great pizza! My husband and I agreed that the crust is very similar to what Pizza Hut pan crust used to be years ago. Clean place and good service. Would definately go back again!
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Jeanne Larsen
Called to order some pizza to go on a Wednesday night. They need to update the hours of operation on google. It says they are open until 9 but the person who answered the phone said they close the kitchen at 6 on Wednesday’s. Very frustrating. They have good pizza and we enjoy getting food there.
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Ben Sanders
Good little buffet. Very similar to Pizza Ranch but smaller. Has a small arcade and does serve beer if that’s your thing. Buffet refills were a little slow during my visit.
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Boop
This was our first time to the buffet since it was bought out, and it wasn’t pleasant. When we arrived we had to wait maybe 5 minutes before we were seated, we get up to the buffet and wow, no chicken, only two types of pizza; BLT and meat lovers, not great. We were there for 40 minutes and fresh chicken was never brought out. They had normal sausage pizza at one point but no cheese or Canadian bacon. It’s obvious this place is struggling, there were maybe 5 other vehicles there, and for good reason. It’s expensive, the buffet is bad, the tomatoes were white, the radishes were brown. Although we have had delivery and it was pretty good. Don’t come here, save some money and time, go somewhere else.
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Ellen Agan
I’m a big pizza fan .
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Jennifer Allyson Nebbia
Every experience I’ve had at Diamond Pi has been great! The food is always top notch and they continue to offer new and exciting options. Just had the Mac and cheese pizza and a Chicago style taco pizza for the first time – both so good!! The cheese sticks and dessert pizza are both some of my favorites I get every time. Definitely a must try spot for food if you’re in the area.
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Megan Smith
The salad was fresh and crunchy and the BLT pizza was hot and delicious. We had 3 people eat the dinner buffet and our bill was under $21. Affordable buffet—check out their Facebook page for details! We certainly will visit again.
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