Egg Biscuit Bake - Ohio Eggs

Ingredients

• 8 baked biscuits, torn or cut into bite-size pieces
• 8 ounces deli ham, chopped
• 1 cup quartered grape tomatoes
• 10-ounce package of frozen spinach, thawed and squeezed dry
• ¼ cup thinly sliced green onions
• 1 ½ cups shredded Gruyère cheese, divided
• 8 large eggs
• 2 cups half and half
• 2 tablespoons whole-grain mustard
• Salt and pepper to taste