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Italian Sausage Stuffed Zucchini Boats

Italian sausage zucchini boats with baked zucchini shells filled with savory Italian sausage, peppers, and marinara, then topped with deeply golden mozzarella. You get tender zucchini with a browned, cheesy top and fennel-speckled sausage throughout each bite.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 servings
Course: Dinner
Cuisine: Italian-American
Calories: 680
Ingredients Equipment Method Notes

Ingredients
  

zucchini
  • 4 large zucchini Halved lengthwise
sausage
  • 1 lb Italian sausage Casings removed (hot or mild)
vegetables
  • 1 red bell pepper Diced
  • 1 small onion Diced
  • 3 garlic cloves Minced
sauce and seasonings
  • 0.5 cup marinara sauce
  • 1 tsp Italian seasoning
  • 0.25 tsp red pepper flakes
  • 1 salt To taste
  • 1 pepper To taste
cheeses
  • 1.5 cup mozzarella cheese Shredded
  • 0.25 cup parmesan Grated
garnish
  • 1 fresh basil For garnish

Equipment

  • 1 Cast iron skillet
  • 1 sheet pan

Method
 

Prep and roast-ready zucchini
  1. Preheat the oven to 400°F so it’s hot and ready for baking the boats. Place a sheet pan in the oven while it preheats if you want a slightly quicker set on the zucchini edges.
  2. Halve the large zucchini lengthwise, then scoop out the centers leaving a 1/4-inch shell. Chop the zucchini flesh and set it aside for the filling.
Cook the sausage filling
  1. Cook the Italian sausage in a skillet over medium-high heat, breaking it apart until browned. Drain excess fat so the filling stays savory but not greasy.
  2. Add the diced red bell pepper, diced small onion, and chopped zucchini flesh, then cook for 4 minutes. Stir until the vegetables soften slightly and the zucchini flesh loses some crunch.
  3. Add the minced garlic, marinara sauce, Italian seasoning, and red pepper flakes, then simmer for 3 minutes. Season with salt and pepper to taste and simmer until the mixture looks cohesive.
Stuff, top, and bake
  1. Fill each zucchini shell with the sausage mixture and pack it in lightly so the boats hold together. Top with shredded mozzarella cheese and grated parmesan so the cheese covers the surface.
  2. Bake at 400°F for 20–25 minutes until the mozzarella is deeply golden and the zucchini is tender. Look for bubbling and a few browned, slightly charred spots on top.
  3. Garnish with fresh basil and serve immediately for the best texture. Letting them sit too long can loosen the filling and soften the cheese.

Notes

Pro tip: for cleaner boats, keep the zucchini shell thickness close to 1/4-inch so they tenderize without collapsing. Store leftovers in the refrigerator up to 3 days in an airtight container. Freezing is not recommended because zucchini releases water and the cheese texture softens. For a lighter option, use mild Italian sausage with part-skim mozzarella while keeping the same baking time.