This is originally a Bisquick recipe. I've made a few changes to add more flavor. We have this for Christmas morning every year. Just pop it in the oven while you are opening presents!
Breakfast Overnight Casserole
1 to 2 cups diced fully cooked ham
12-15 ounces frozen shredded hash brown potatoes
1 medium bell pepper, diced
1 tablespoon instant chopped onion
2 cups (8 oz) shredded cheddar cheese
3 cups milk
2 tsp pepper
1 tsp salt
2 tsp dried ground mustard
1 cup original or reduced fat Bisquick
1. Grease 13 x 9 baking dish. Mix ham, potatoes, bell pepper, onion, and 1 cup of cheese. Spread in baking dish.
2. Stir milk, Bisquick, salt, pepper, mustard, and eggs until blended. Pour over potato mixture. Sprinkle with remaining cup of cheese. Cover and refrigerate at least 4 hours but no longer than 24 hours.
3. Heat oven to 375 degrees. Uncover and bake 1 hour, or until light golden brown around edges and cheese is melted. Let stand 10 minutes before serving.