Preheat oven to 350º
Grease a muffin tin with oil or cooking spray
In a large nonstick skillet over medium heat (5/6), cook to soften the optional ingredients. Pour a teaspoon of oil into the pan and cook the veggies to soften
When veggies are soft (usually about 5-6 minutes) set in a bowl aside and turn the stove off
In a small bowl, whisk eggs, milk, and seasonings using a whisk or fork
Fold in cooked vegetables/meats
Pour egg and vegetable mixture into greased muffin tins. This should fill up about 6 regular sized muffins
Bake until cooked through and golden, 30 to 35 minutes.
Let cool, then store in the fridge in an airtight container until ready to eat.