- 1 pound ground beef
- 1 small onion, diced
- 1 teaspoon roasted garlic
- 1 (28 ounce) can diced tomatoes with garlic and onion
- 1 (12 ounce) can tomato paste
- 1 tablespoon white sugar
- 1 1/2 teaspoons salt
- 1/2 teaspoon dried oregano
- 1/2 teaspoon dried thyme
- 1 bay leaf
- 1/2 teaspoon ground black pepper
- 1/4 teaspoon garlic salt
- 1 (8 ounce) package manicotti shells
- 1 (8 ounce) package shredded mozzarella cheese
- 30 ounces cottage cheese
- 1/4 cup grated Parmesan cheese
- 1 egg, beaten
- 1/2 teaspoon salt
- 1/2 teaspoon ground black pepper
- 1/4 cup grated Parmesan cheese
- Heat a large skillet over medium-high heat. Cook and stir beef, onion, and roasted garlic in the hot skillet until browned and crumbly, 5 to 7 minutes. Continue to simmer until pan juices evaporate, about 10 minutes more. Add diced tomatoes, tomato paste, sugar, 1 1/2 teaspoons salt, oregano, thyme, bay leaf, 1/2 teaspoon pepper, and garlic salt; bring to a boil. Reduce heat to medium-low and simmer until flavors blend, about 30 minutes.
- Preheat oven to 350 degrees F (175 degrees C).
- Bring a large pot of lightly salted water to a boil. Cook manicotti in the boiling water, stirring occasionally until cooked through but firm to the bite, about 8 minutes. Drain and cool slightly.
- Mix mozzarella cheese, cottage cheese, 1/4 cup Parmesan cheese, egg, 1/2 teaspoon salt, and 1/2 teaspoon pepper in a bowl. Spoon a generous amount of the cheese mixture into each manicotti shell.
- Pour enough tomato-beef sauce to cover the bottom of a 9×13-inch baking dish. Arrange stuffed manicotti over sauce; pour remaining sauce over pasta. Cover with aluminum foil.
- Bake in the preheated oven until bubbly, about 30 minutes. Sprinkle remaining 1/4 cup Parmesan cheese over manicotti and return to the oven. Bake until cheese filling is melted, 10 to 15 minutes more.