Baked Frittata

I pulled some leftover ham out of my freezer the other day and the first thing that came to mind was "frittata".  I decided to go with a baked version and this is what I came up with:

1-1/2 cups fully cooked ham, diced
1 sweet red pepper, diced
1 small yellow onion, diced
1-1/2 cups shredded Mexican-blend cheese
6 eggs
garlic salt,
pepper
dried chives

Whisk eggs then add remaining ingredients.  Pour into a greased 8x8-inch cooking dish and bake at 375F for approximately 20-30 minutes.  Quite tasty!