This oven baked egg frittata is amazing! So easy to make, just mix the eggs with milk, cheese and veggies in a bowl, pour in the baking dish and bake! This is my kind of breakfast!
Preheat the oven to 350F. Spray the 9x13 non-stick baking dish with non-stick cooking spray (or grease with butter).
Heat olive oil in a non-stick frying pan over medium-high heat. Add the chopped onion and bell pepper and cook, stirring periodically, for 5 minutes (or until tender).
In a large bowl, whisk the eggs, milk, salt and pepper. Add cooked onion and bell pepper and 1/2 cup of shredded cheese.
Pour the egg mixture in a baking dish and sprinkle the remaining 1/2 cup of shredded cheese on top.
Put the baking dish in the oven and bake for 30 minutes, or until frittata is cooked through.