Great food,I enjoy the large portions and quiet place the service is quick also, the staff is so friendly, best key lime pie

Good little diner. I would stick to the classics and you can't go wrong. Overall atmosphere is good, food quality is about what I'd expect. I need to try the pies next time I'm there.

It's coffee shop food. Some dishes are pretty tasty. I love the burgers and the lemmon pepper salmon. Don't order the meatloaf or pork chops. They are so thin and the cook always overcook it. Service is always the best

Buttercup is a reliable local spot for comfort food that is tasty and filling. I enjoy their omelets, waffles, and seasonal salads. If I'm feeling wild (and hungry), things to try based on your mood or time of day are their Cinnabiscuits or ginormous housemade mozzarella sticks. Don't have both at the same meal unless you want to fall into a nap coma. The Cinnabiscuit is a biscuit dipped in cinnamon sugar and then topped with cream cheese icing. They are decadent but so good with their coffee. And you can sub your bread choice for a cinnabiscuit for a small upcharge. It's well worth it. And those mozzarella sticks, they are huge. They cut a block of cheese into 4 very large mozzarella sticks and then serve it with warm marinara sauce or ranch. It's so good and so filling. And I like to order them with their greek or seasonal chicken balsamic salad with strawberries when they have it. It's called balance - haha. The place is very cute and busy on weekends. Service is always friendly, and unless your extremely hungry expect to bring home leftovers.

Came to Buttercup Vallejo late morning on a Sunday. It was pretty busy and I sat at the bar since it was just me. I got the classic breakfast plus a side pancake. Service was really good, although I nvr got a coffee refill. The food was very good, esp the has browns - done with a perfect crisp on the outside but just done on the inside. My over medium eggs were a little on the over easy side. The sourdough toast was tasty and perfectly toasted. The sausage was links unfortunately-I prefer patties-but it had a good flavor. The pancake was a carbohydrate fueled dream. The only bummer was the behind the bar area didn't feel really clean and made me glad I didn't get the Bloody Mary Buttercup is an old timey (read dated decor) coffee shop, but I can deal with that for those hash browns and pancake.

Came for a late lunch with my Grandmother and enjoyed myself. We were seated within 3 minutes and our server took our drink order immediately after. We ordered the chicken Piccata (succulent) and coconut shrimp (tasty) meals with the baked potato soup. Everything was really good.

I was introduced to Buttercup by a friend. We went there with another friend to laugh about life and enjoy each other. Buttercup could not have been a better location. We enjoyed the food (we all ordered the Shrimp and Grits), atmosphere, and out wonderful server May. May was a very good server. She was pleasant, kind, with the perfect touch of humor. May was attentive and gave us good hints about the menu. I must add that May makes a mean milkshake! The Shrimp and Grits was the star. The grits had the right amount of cheese topped with a healthy number of plump juicy shrimp. The sauce... OMG... talk about the right blend of seasonings. We all lapped it up with me lapping the hardest. I cannot recommend any higher. Not a fancy spot, but perfect for good food, good service, and good atmosphere.

We have come back twice since our last visit. Once for breakfast and once for dinner. When we went for breakfast I got Chilaquiles and my husband got the French toast combo. The chilaquiles were solid, I've had better but they were definitely decent. My husband said the French toast was okay but wish it had a bit more flavor. The highlight of the breakfast was the sausage...they were hearty and flavorful. When we came for dinner I wasn't too hungry so I ordered their IN HOUSE mozzarella sticks...they were huge and delicious! I highly recommend giving them a try. My husband enjoyed his Philly a lot. The onion rings were good but tasted like they were fried in oil that needed to be changed...it was disappointing because other than the bad oil taste the texture was perfect. We then got the dessert waffle...it was just okay I think I would've preferred to get one of their sundaes. Overall I still recommend coming here any time of the day. The service is always great!

I LOVE ButtercuP! The 'P' stands for Pie ; - ) Honestly, their portion sizes are on point. You won't leave hungry. Excellent, friendly customer service. Plenty of seating! Private parking lot. I was immediately excited to see options for veggie sausage meat on the menu! Talk about a wonderful accompaniment to my breakfast options! They also had marble rye toast, which I love! The cheesy grits were sitting in a moat of butter, so that was a little off putting. They were still delicious tho! My partner loved her meal as well! I believe it was chicken fried steak. Overall, if you want that comfort, diner style, NOT Denny's (better!) and tons of options for breakfast, lunch, and dinner........ visit here. It's definitely on my list of bookmarks to return.