Stuffed Shells with Beef, Spinach, and Ricotta | Combi Steam Oven Recipes

Ingredients

• 0 of Kosher salt
• 12 oz of jumbo pasta shells
• 0 of Extra-virgin olive oil
• 1 lb of 80% lean ground beef
• 8 oz of baby spinach
• 1 cup of diced white onion
• 3 cloves of garlic, minced
• 15 oz of ricotta cheese
• 8 oz of low-moisture mozzarella cheese, grated, divided
• 1/2 cup of freshly grated Parmesan cheese
• 1 tsp of dried basil
• 1 tsp of dried oregano
• 1 tsp of red pepper flakes
• 0 of Freshly ground black pepper
• 1 large of egg
• 2 1/4 cups of jarred marinara sauce, such as Rao’s, plus more for serving