Caramelized Onion without refried cornmeal

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 5 cups (1-inch) cut green beans (about 1 pound) Cooking spray 3 cups thinly sliced onion 6[...]

4 tablespoons extra virgin olive oil 1 1/2 large onions , thinly sliced lengthwise 6 -8 ounces mushrooms , sliced 1/2 teaspoon salt 20 ounces prepared whole[...]

5 cups cut green beans, about a pound vegetable oil cooking spray 3 cups thinly sliced onions 6 garlic cloves , smashed 2 teaspoons sugar 1/2 teaspoon salt[...]