Cheesy Stuffed Zucchini Boats

Cheesy Stuffed Zucchini Boats turn fresh zucchini into a cozy, satisfying dinner without feeling too heavy. Tender zucchini halves are layered with creamy ricotta-Parmesan, a savory beef and marinara filling, melted mozzarella, and buttery Parmesan breadcrumbs.

The filling comes together in one skillet, while a quick pre-bake keeps the zucchini tender without becoming watery. A touch of balsamic brightens the tomato sauce, and fresh basil adds a clean finish. These stuffed zucchini boats are easy enough for a weeknight yet special enough to serve with salad, warm bread, or pasta. Bubbling cheese has a way of making vegetables especially welcome at the table.

Recipe Yield: 4 servings

INGREDIENTS

4 medium zucchini, 7–8 oz each
1 lb 90% lean ground beef
1/2 cup whole-milk ricotta cheese
1/3 cup finely grated Parmesan cheese, divided
1 1/4 cups shredded low-moisture mozzarella cheese
1/3 cup panko breadcrumbs
1 tbsp olive oil, divided
3/4 tsp kosher salt, divided
1/4 tsp ground black pepper
1 small yellow onion, finely diced
3 garlic cloves, minced
2 tbsp tomato paste
1 cup thick marinara sauce
1 tsp Italian seasoning
1/2 tsp smoked paprika
1 tsp balsamic vinegar
1/4 tsp crushed red pepper flakes, optional
1 tbsp melted butter
2 tbsp chopped fresh basil or parsley, divided

INSTRUCTIONS

1. Prepare the zucchini:
Preheat the oven to 425°F and lightly grease a 9×13-inch baking dish. Halve the zucchini lengthwise, then scoop out the centers, leaving sturdy 1/4-inch borders.

2. Pre-bake the boats:
Finely chop 1 cup of the removed zucchini and squeeze out the excess moisture. Brush the boats with 2 tsp olive oil, then season with 1/4 tsp salt and the black pepper. Bake cut-side up for 10 minutes.

3. Cook the beef filling:
Meanwhile, heat the remaining 1 tsp oil in a large skillet over medium-high heat. Cook the onion for 3 minutes. Add the beef and cook for 5–6 minutes, breaking it into small crumbles. Drain excess fat if needed.

4. Finish the sauce:
Add the squeezed zucchini and garlic. Cook for 3–4 minutes until the moisture evaporates. Stir in the tomato paste and cook for 1 minute. Add the marinara, Italian seasoning, paprika, balsamic vinegar, red pepper flakes, and remaining salt. Simmer for 4–5 minutes until thick enough to mound on a spoon and the beef reaches 160°F.

5. Add the ricotta layer:
Remove the zucchini from the oven and blot away any moisture inside the boats. Combine the ricotta, 1/4 cup Parmesan, and 1 tbsp chopped herbs. Spread the mixture evenly inside each boat.

6. Fill and top:
Spoon the beef filling into the zucchini boats and top evenly with mozzarella. Combine the panko, melted butter, and remaining Parmesan, then sprinkle over the cheese.

7. Bake until bubbling:
Bake for 15–18 minutes until the zucchini is tender but still holds its shape, the mozzarella is melted, and the topping is lightly golden. For a deeper golden finish, broil for 1–2 minutes only if using a broiler-safe baking dish.

8. Rest and serve:
Let the zucchini boats rest for 5 minutes. Finish with the remaining fresh herbs and serve warm.

HELPFUL TIPS TO PERFECT THIS RECIPE

• Remove excess moisture: Squeeze the chopped zucchini well and blot the pre-baked boats before filling. This keeps the sauce rich instead of watery.
• Keep the filling thick: The beef mixture should mound on a spoon without running. Simmer it for another minute or two when needed.
• Choose medium zucchini: Zucchini around 7–8 oz become tender while remaining sturdy enough to hold the filling.
• Prepare ahead: Assemble the boats up to one day in advance. Refrigerate covered, then add the breadcrumb topping just before baking.