Step 1

Preheat the oven to 350°F. Grease an 12x17" rimmed sheet pan with cooking spray, line with parchment paper, and spray again.

Step 2

In a blender, blend the eggs with the milk. Season with salt and pepper, to taste.

Step 3

Pour the egg mixture evenly on the sheet pan and top with the mushrooms, peppers, and shredded cheese.

Step 4

Bake the eggs for about 15-18 minutes, until they are set.

Step 5

Allow the eggs to cool for a few minutes, then cut the eggs into 12 equal pieces. Serve on a toast with mashed avocado and fresh parsley, if desired.