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Penne Pasta Bake with Sausage and Spinach

A hearty and flavorful penne pasta bake is loaded with Italian sausage, fresh spinach, marinara sauce, basil pesto, and plenty of cheese!
Course Dinner
Cuisine Italian
Keyword baked penne, baked penne pasta, baked penne pasta recipe, penne pasta bake
Prep Time 25 minutes
Cook Time 25 minutes
Total Time 50 minutes
Servings 8 people
Calories 576kcal
Author Blair Lonergan

Ingredients

  • 1 (16 ounce) package penne pasta
  • 1 lb. Italian sausage, casings removed
  • 1 medium sweet onion, finely diced
  • 3 cloves garlic, minced or grated (about 1 tablespoon total)
  • 4 cups marinara sauce (about 40 ounces)
  • ¼ cup prepared basil pesto
  • ½ teaspoon crushed red pepper flakes (optional)
  • 5 ounces fresh baby spinach
  • ¼ cup chopped fresh basil (optional)
  • 8 ounces (about 2 cups) shredded Italian cheese blend, divided
  • ½ cup grated Parmesan cheese, divided
  • Kosher salt and ground black pepper, to taste
  • Optional garnish: extra chopped fresh basil or other fresh herbs

Instructions

  • Preheat oven to 375°F. Grease a 9 x 13-inch baking dish with nonstick spray; set aside.
  • Boil penne in a large pot of well salted boiling water according to package directions for al dente. Drain.
    Boiled penne pasta draining in a colander.
  • Meanwhile, brown sausage and onion in a large skillet or Dutch oven over medium-high heat until the sausage is no longer pink and the onion is translucent, about 5-7 minutes. Add the garlic and cook for 1 more minute. Drain off excess grease.
    Browning Italian sausage in a Dutch oven.
  • Stir in the marinara; simmer for about 10 minutes. Add the pesto and crushed red pepper flakes. Taste the sauce and season with salt and pepper, if desired. Stir in the cooked pasta, spinach, and fresh basil.
    Overhead image of a pot of penne and Italian sausage.
  • Spread half of the pasta mixture in the prepared baking dish. Sprinkle with half of the Italian cheese and half of the Parmesan cheese. Top with the remaining pasta mixture. Add the rest of the Italian cheese and the rest of the Parmesan cheese on top.
    Process shot showing how to make baked penne pasta.
  • Bake, uncovered, for about 25-30 minutes, until the cheese on top is melted and the inside is hot and bubbly. Garnish with additional fresh basil, if desired.
    Spoon in a dish of the best baked penne pasta recipe.

Notes

  • If you're looking for a baked penne recipe that starts with uncooked pasta (no boiling first), then you'll want to check out our dump-and-bake recipes. For instance, try this dump-and-bake Cajun sausage pasta, this dump-and-bake chicken Parm casserole, or this dump-and-bake chicken mushroom casserole.
  • Swap out the Italian sausage and use ground beef, ground turkey, ground chicken, or a chicken or turkey-based Italian sausage.
  • Any short pasta shape will work. For instance, replace the penne with rotini, farfalle, rigatoni, or ziti.
  • Omit the spinach if your family doesn't care for it. You can also sub with a 10-ounce package of frozen chopped spinach. Just make sure that you thaw the frozen spinach and squeeze it really dry before adding it to the pasta mixture. Alternatively, sub with other veggies like diced zucchini (sauteed with the onion and sausage) or parboiled broccoli.
  • Add other fresh or dried herbs for even more flavor. Good options include oregano, thyme, and rosemary. Italian seasoning is also a convenient way to get a lot of extra flavor into the dish.
  • Feeding a smaller family? Cut the ingredients in half and bake the casserole in a 2-quart casserole dish.

Nutrition

Serving: 1/8 of the casserole | Calories: 576kcal | Carbohydrates: 54g | Protein: 27g | Fat: 28g | Saturated Fat: 11g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 10g | Cholesterol: 67mg | Sodium: 1373mg | Potassium: 797mg | Fiber: 4g | Sugar: 7g | Vitamin A: 2616IU | Vitamin C: 16mg | Calcium: 353mg | Iron: 3mg