Cosmo's Pizza

Best NY-style pizza west of New Jersey. It’s always delicious, take-out or delivery, but the best way is to dine in and eat a couple of their ginormous window slices while it’s hot and fresh—especially with a side of their secret-recipe ‘spicy ranch’ (you’ll never want to eat pizza again without it).

I wish they’d open up a few more shops to spread out around the city, but definitely make your way to Cosmo’s for Colorado’s best NY-style “‘zza.”

Weird atmosphere but is very welcoming. Maverick slice is phenomenally tasty. And The spicy ranch adds a nice spin

Wow! What a gem! Decided to try something new and chose this pizza place that’s 5min away from our house. Hell yeah it was worth it! Staff was very cooperative and friendly, clean place, easy to locate the restroom, plenty of seating available, and most importantly, delicious pizza slices and salads! The pizza slices are BIG and so good! My dad got the Greek Feta pizza slice, delicious, my sausage slice was good, and the olives and pineapple slice was good as well! Overall, awesome pizza place! Will definitely recommend and will be back! A must visit!

WOOOOOW! The downtown Cosmo’s joint is the best, the staff literally goes above and beyond. Not only did they make me the most delicious pizza, but they made it heart shaped, lover’s edition. They all deserve a raise. Tylor, Andy, Shayne, Chris, Emmett, Eli I’ll never forget this special za. 🫶🍕🫶THANK YOU. I’ll be back and highly recommend.

This was what felt like the American style pizza that you see in the movies. The pizza's are MASSIVE and the dip they give you with it is amazing. The service was really good as he ask about my trip and was just genuinely interested in me as a customer. The atmosphere was really nice as well as they had classics playing in the background and a nice colour scheme.

I always order the same thing and they never disappoint. To pay less than 45$ (this is including a tip for the delivery driver) for a 24 inch pizza with 3 toppings at 11pm, you’d expect to be disappointed and underwhelmed. This is not the case when it comes to the Cosmos on Grant Street. I’ve ordered delivery over a dozen times and I look forward to it a little bit more each time. Consistently great pizza to be delivered hot and on time is what I’ve grown to expect and appreciate from them. This is coming from a native New Yorker and you know we always have to tell other cities how good or how bad their pizza is. Cosmos could open in the heart of Brooklyn and it would take a long time before anyone found out that the other 6 locations were in Colorado. I will continue to recommend this spot to anyone who asks and honestly, to anyone who doesn’t ask. The 24 inch pie is so much bigger than you expect it to be. Each slice is a foot long yet sturdy enough to hold plenty of toppings. Order from Cosmos and don’t forget to ask for their signature spicy ranch. Don’t sleep on this place.

Cosmo's is AWESOME! They have huge, by the slice pizza freshly prepared to go. Or you can get the amazingly large 24 inch pie here. It could feed 8 regular people or 4-6 really hungry individuals. I found it filling to eat one piece of the eight. Of course they have smaller options too. I used their online portal to order. The pizza was ready exactly at the time as indicated, and was very good. A crisp and well baked crust was received with well proportioned fresh ingredients, piping hot out of their oven. Staff was happy and friendly, and very appreciative of compliment and a tip. A good value and delicious.

Came back again this time had the small Supreme pizza and it did not disappoint. I walked in to order this time instead of ordering through the online app. It only took about 10 minutes for them to hand me a piping hot & delicious pizza. I was dining alone and could only eat about half of it so the rest went home and was really good cold a few hours later. Cosmos is consistent in their preparation and the result is a delicious pizza that is well balanced and prepared fresh & hot. Definitely worth a try.👍

I had Cosmo’s for the first time last night. Look how big this pizza is! 24” and the slices were as big as my head. We did half meat lovers and half Greek with chicken. Can’t forget the spicy ranch, it was the best to dip the crust in. Overall great pizza, delivery wasn’t bad for a Saturday night, and it was free delivery. This fed 4 adults easily and ended up being about $30/couple with tip. Find me on Instagram for more @onehungrygirl__.

This place has awesome pizza. Sometimes i just crave for one slide instead of a whole pie. They sell by slide or a whole pie but either way, you order to reheated just right. We enjoyed stop every time we close by. Dip your pizza into the amazing sriracha ranch they offered. Very good combo!

This is a great place to get a giant slice of cheap pizza. I went simple and got a slice of plain cheese pizza. It was only $3 and it really hit the spot! It was nothing too fancy, but perfect for a cheap and easy meal. They also heat up your pizza in the oven so it comes out hot and delicious.

Team is always friendly. Very reasonable prices. Free delivery. Largest "large" pizza I've ever seen. Never had a pizza that didn't leave me wanting more after my leftovers are finished.

Got a vegan pizza with a few toppings and I was pleased. Cheese coverage was good even when ordering with vegan cheese - that makes me happy.

I only visited Denver for the day but had multiple people recognize the Cosmo’s pizza box on my way to the hotel and talk about how good it is.

This was the best experience I’ve ever had ordering pizza. I’m a big garlic lover so the Cosmos Classic was my pick and it was so amazing I basically inhaled 4 slices instantly. Pizza was hot everything was perfect and amazing! Great Job 👏🏼

The staff is super attentive and friendly. I placed a large order for pick up, Andy was super helpful over the phone and made sure the food was ready for pick up right on time. Josh took care of my order and even helped me bring it to my car. Food was great. I would give this place a 100 stars.

NJ guy in Denver, sick of Detroit pizza and people, I tried Cosmos on Federal and it is good! Crust had chew, folded well, good sauce, not spaghetti-like and well-done overall.

This is one of the best gems in the Denver metro area. They do a great job at this location, really keep the original vibe, and always have a pleasant staff we love coming here! Best late night pizza in Denver.

At $6 a slice it's not the cheapest but the slices are big and it's good pizza (I had a meat lover's). Can't really complain.
Would come back again.

Perfect for giant, ready to go, NY Style slices with great toppings! Eat in our take it to go! Would definitely recommend! (oh and try the spicy ranch!)

Big pizza! Good crust, new York style! Not too greasy! Pricey but worth it

I ordered 4, 24-inch pizzas at 9 am to pick up the same day at at 11am. Not only were they ready when I got there, but they were delicious too! Thanks, Cosmo's staff @ 550 Grant