Cheesy Ravioli Lasagna Easiest Italian Comfort Food

Ingredients

• 2 (25 ounce) packages frozen cheese ravioli, slightly thawed (about 1.4 kg)
• 1 tablespoon olive oil (15 ml)
• 1 medium onion, chopped (about 1 cup)
• 2 cloves garlic, minced
• 1 (28 ounce) can crushed tomatoes (794 g)
• 1 (15 ounce) can tomato sauce (425g)
• 1 teaspoon dried oregano
• ½ teaspoon dried basil
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 1 (15 ounce) container ricotta cheese (425 g)
• 1/2 cup grated Parmesan cheese (about 50g)
• 1 large egg, lightly beaten
• 1/4 teaspoon salt
• 1/8 teaspoon black pepper
• 3 cups shredded mozzarella cheese (about 300g)