Pantry Tomato Soup with Grilled Cheese Croutons

Ingredients

• 1 Tablespoon olive oil
• 1 onion, diced
• 3 garlic cloves
• 1 Tablespoon kosher salt
• 1 1/2 teaspoons black pepper
• 1 can Red Gold Canned Whole Peeled Tomatoes 14.5 oz
• 1 can Red Gold Diced Tomatoes with Basil, Garlic & Oregano 14.5 oz
• 1 can Red Gold Original Diced Tomatoes + Green Chilies 10 oz
• 2 cups chicken or vegetable stock
• 1 Tablespoon fresh parsley, finely chopped, optional
• 4 Tablespoons butter, room temperature
• 4 slices sourdough bread
• 1 cup shredded cheddar
• 1 cup grated parmesan