Ratatouille Sandwich

Ingredients (12)

• + 1 red bell pepper, sliced add to pantry
• + 1 tomato, chopped add to pantry
• ✓ 1 clove garlic, minced
• + 1 teaspoon dried oregano, or to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + 1 eggplant, sliced add to pantry
• ✓ 1 zucchini, sliced
• + 1 red onion, sliced add to pantry
• + 4 teaspoons olive oil add to pantry
• + 4 slices sourdough bread add to pantry
• + 4 slices mozzarella cheese add to pantry