Sausage, Cheese, and Potato Egg Casserole

Ingredients (12)

• 1 lb. breakfast sausage
• 1/2 large yellow onion
• 1 red bell pepper
• 3 cloves garlic
• 12 large eggs
• 1 cup milk
• 2 cups frozen diced potatoes
• 2 cups roughly chopped spinach
• 2 cups shredded pepper jack cheese
• 1 1/2 teaspoons salt
• 1/2 teaspoon black pepper
• 2 green onions