Preparation

• Preheat your oven to 375°F. Wash the zucchini thoroughly, then slice them in half lengthwise. Use a small spoon to scoop out the centers, setting the flesh aside. Arrange the hollowed-out zucchini halves on a baking sheet or baking dish.
• Heat olive oil in a large skillet over medium-high heat. Add the diced onion and sauté until softened. Next, add the ground beef, cooking until browned. If needed, use a paper towel to absorb any excess grease. Stir in the tomato paste, minced garlic, marinara sauce, and seasonings, mixing everything well.
• Reduce the heat to low and let the filling simmer uncovered for about 5 minutes, stirring occasionally to allow the flavors to meld.
• Spoon the beef mixture into each zucchini half, filling them generously. Sprinkle with shredded cheese and, if desired, finish with parmesan for extra flavor. Bake for 30 minutes, or until the zucchini is tender and the cheese is melted and bubbly.
• Serve hot and enjoy!