How to make Egg Frittata with Cheese and Green Onions

Ingredients
5 eggs
1 cup of bread, cubed and toasted
1/2 cup of milk
1/2 cup of grated cheddar cheese
1/4 cup of cooked ground beef
1/4 cup of roasted red pepper, cubed
1/4 cup of chopped green onions
1 tablespoon of mustard
Salt
Black pepper

Preparation steps