Caramelized Onion Pizza with romano

2 large onions 1 tablespoon butter 1 tablespoon olive oil 1/3 cup light mayonnaise 1/3 cup pesto sauce or 1/3 cup basil , that comes in a tube 1 (10 ounce)[...]

1 large red onion , thinly sliced 2 garlic cloves , minced 2 tablespoons olive oil 4 pita bread rounds, whole wheat 1 large tomatoes , quartered and sliced or[...]