116-ounce jar roasted red peppers, drained, or 1/2 recipe homemade roasted red peppers
1cupwhole milk ricotta cheese
1ounceparmesan cheesefreshly grated (¼ cup)
2tablespoonstomato paste
1tablespoonfresh basilchopped
1teaspoonkosher salt
1/2teaspoonfresh ground black pepper
12ouncescooked chickenchopped
8ouncesmozzarella cheeseshredded (about 2 cups)
Optional Garnishes: shredded parmesanchopped fresh basil or parsley, crushed red pepper flakes
Instructions
Preheat the Oven: Preheat oven to 375°F. Grease a 9x13-inch baking dish with butter or nonstick spray.
Cook the Pasta: Bring a large pot of salted water to a boil. Cook 12 ounces rigatoni pasta until al dente according to package directions. Drain, reserving 1/2 cup pasta water, and set aside.
Sauté Aromatics: In a large skillet, melt 2 tablespoons unsalted butter over medium-high heat. Add 1 medium white onion and sauté for 3–5 minutes until softened. Stir in 4 cloves garlic and cook for 30 seconds until fragrant.
Blend the Sauce: Transfer onions, garlic, 1 16-ounce jar roasted red peppers, drained, or 1/2 recipe homemade roasted red peppers, and 2 tablespoons tomato paste to a blender or food processor. Blend until smooth.
Simmer the Sauce: Pour the blended mixture back into the skillet. Stir in 1 cup whole milk ricotta cheese, 1 ounce parmesan cheese, 1 tablespoon fresh basil, 1 teaspoon kosher salt, and 1/2 teaspoon fresh ground black pepper. Simmer gently while the pasta finishes cooking. Stir in reserved pasta water for a silky sauce.
Combine with Pasta and Chicken: Add pasta and 12 ounces cooked chicken to the sauce. Stir until everything is well coated.
Bake: Transfer mixture to the prepared baking dish. Top with 8 ounces mozzarella cheese and bake uncovered for 10–15 minutes, until cheese is melted and bubbly.
Serve: Garnish with parmesan, basil, parsley, or red pepper flakes if desired. Serve hot.
Notes
Make-Ahead Tips: Sauce can be blended and stored in the refrigerator up to 3 days in advance. Assemble and bake when ready to serve.Storage: Refrigerate leftovers in an airtight container for up to 3 days.Reheating Tips: Reheat individual portions in the microwave in 30-second intervals, stirring halfway. Add a splash of milk or broth if sauce thickens.Freezing Tips: Freeze baked or unbaked portions for up to 2 months. Wrap tightly in plastic wrap and foil. Thaw overnight in the refrigerator and bake as directed, adding extra minutes if chilled.