Pasta shells (large): 100g (about 8 shells), Spinach: 50g (1.5 cups, fresh), Ricotta cheese: 120g (1/2 cup + 1 tbsp), Parmesan cheese: 15g (1 tbsp, grated), Egg: 25g (1/2 large), Garlic: 3g (1 clove, minced), Marinara sauce: 120g (1/2 cup), Mozzarella cheese: 30g (2 tbsp, shredded), Dried basil: 1g (1/4 tsp), Dried oregano: 1g (1/4 tsp), Red pepper flakes: 1g (1/4 tsp), Salt: 1g (1/4 tsp), Black pepper: 1g (1/4 tsp)