Meatloaf with oats with cider

5 tablespoons olive oil 3 large onions , coarsely chopped 1 tablespoon sugar 2 teaspoons dried oregano 2 garlic cloves , minced 1/4 cup apple cider vinegar 1[...]

2 (10 ounce) cans Hunts tomato sauce 4 tablespoons onion powder 1 teaspoon salt 2 tablespoons white vinegar or 2 tablespoons apple cider vinegar 2 teaspoons[...]