Hearty Baked Ziti with Spinach and Ricotta: Easy

Ingredients

• 1 pound ziti pasta
• 2 tablespoons olive oil
• 1 medium onion, diced
• 3 cloves garlic, minced
• 1 (28-ounce) can crushed tomatoes
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• Salt and pepper, to taste
• 15 ounces ricotta cheese
• 1 cup grated Parmesan cheese
• 1 large egg
• 2 cups fresh spinach, chopped
• 2 cups shredded mozzarella cheese