"To make a frittata" means to cook an Italian dish made with beaten eggs and various ingredients like vegetables, meat, or cheese. It's similar to an omelette but cooked slowly in a pan until firm. Full definition
I like to make a frittata for dinner, then eat it the next day at room temp for lunch, when I pat myself on the back for having done all the work the night before. (bonappetit.com)
I'm also a big fan of making a frittata with the beans all chopped up and more garlic and onions! (treatswithatwist.com)