Ingredient:

• 3/4 cup dried lentils, rinsed
• 1-1/2 cups reduced-sodium vegetable broth
• 2 teaspoons olive oil
• 1/2 cup finely chopped onion
• 1/4 cup finely chopped celery
• 3 garlic cloves, minced
• 1/2 cup quick-cooking oats
• 1 large egg, room temperature, beaten
• 2 tablespoons tomato paste
• 1 teaspoon salt
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• 1/2 teaspoon pepper
• 1 jar (24 ounces) marinara sauce
• 1/2 cup grated Parmesan cheese
• 3 tablespoons minced fresh parsley