Meaty Zucchini Boats

Ingredients

• 6 (7 oz or 200 g) zucchini
• 1 pound (450 g) ground lean beef
• 1 tablespoon (15 ml) olive oil
• 1 medium (3.5 oz or 100 g) onion, chopped
• 2 (3 g) cloves garlic, minced
• 1 cup (8 oz or 250 g) marinara sauce
• 1 teaspoon (2 g) Italian seasoning
• 1/2 teaspoon (2.5 g) Kosher salt
• 1/4 teaspoon (1 g) freshly ground black pepper
• 4 ounces (125 g) mozzarella cheese, grated