Roasted Tomato and Onion Frittata
Roasted tomatoes and sweet onions are paired with full-fat Greek yogurt and sharp Cheddar for a tangy, rich frittata that works for breakfast or lunch.
In the summer, tomatoes need little more than salt to reach near perfection, but roasting tomatoes any time of year alongside sweet onions concentrates their sugars and elicits a surprising amount of umami. This fragrant combination serves as the essence of this frittata. But the true hero of this recipe, if you can believe it, is a humble cup of full-fat Greek yogurt, divided between the frittata mixture and a simple sauce. The yogurt works to loosen the structure of the frittata, leaving the baked center eggy, delicate and tangy, with a little extra sharpness from Cheddar cheese, and also serves as a sauce, whisked with mustard and the savory juices left on the baking sheet to ensure no drop of flavor is forsaken. The consequence is a rich and satisfying meal that’s perfect for breakfast or lunch.