Preheat oven to 350°F (180°C).
In a large bowl, whisk together eggs, salt, and pepper. Add diced veggies and stir to combine
Pour into a sprayed/oiled sheet pan. (I used a 12x17-inch rimmed baking sheet that’s 1-inch deep.)
Bake 15-18 minutes, until set.
Allow to cool slightly before cutting into squares and serving!
Option: use a 3-inch round cookie cutter to cut your sheet pan eggs for breakfast sandwiches! They’ll be the perfect size to serve on an English muffin or bagel with your favorite toppings.
Yields ~12 servings, depending on size of cut.