Baked Omelet Squares

Ingredients

• ¼ cup butter
• 1 small onion chopped
• 1 ½ cups shredded Cheddar cheese
• 1 (12 ounce) can sliced mushrooms
• 1 (6 ounce) can sliced black olives
• 1 cup chopped cooked ham
• ½ cup sliced jalapeno peppers
• 12 eggs scrambled
• ½ cup milk
• ½ teaspoon salt and pepper to taste