Roasted Vegetable Stuffed Shells

Name: Roasted Vegetable Stuffed Shells
Prep time: 20 min
Cook time: 55 min
Total time: 1 h 15 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 red bell pepper (diced); 1 small eggplant (diced); 1 small zucchini (diced); 1 tablespoon olive oil; Salt and black pepper (to taste); 21 jumbo pasta shells (we use DeLallo and I always cook a few extra in case they break); 15 oz ricotta cheese; 1 large egg; 1 1/2 cups shredded mozzarella cheese (divided); 1/4 cup grated Parmesan cheese; 1/2 cup frozen chopped spinach (thawed and drained); 1/4 teaspoon dried basil; 1/4 teaspoon dried oregano; Pinch of nutmeg; 2 1/2 cups marinara sauce; Chopped fresh basil (for garnish, if desired)