When you think about enjoying a perfectly melty, crispy grilled cheese sandwich, chances are you're imagining a bowl of tomato soup alongside ... dog or plate of french fries, so it just makes ...

1 (28-ounce can) peeled whole tomatoes, drained and juice reserved, or 20 ounces cherry tomatoes 1 large yellow onion, peeled and quartered ½ cup plus 1 tablespoon olive oil, plus more for ...