Slow Cooker Stuffed Zucchini

Ingredients (13)

• + 2 large zucchini, trimmed and halved lengthwise add to pantry
• + 4 ripe tomatoes, cored add to pantry
• ✓ ¼ cup olive oil
• + ¾ teaspoon salt add to pantry
• + ½ teaspoon ground black pepper add to pantry
• ✓ 1 teaspoon crushed garlic
• + 4 fresh basil leaves add to pantry
• + 1 teaspoon dried Italian herb seasoning add to pantry
• + 1 teaspoon white sugar add to pantry
• + 1 onion, diced add to pantry
• ✓ 1 pound bulk sweet Italian sausage
• + ¼ cup grated Parmesan cheese add to pantry
• + 1 cup grated mozzarella cheese add to pantry