Caramelized Onion and White Bean Flatbread without garlic flour

2 1/2 tablespoons canola oil or other vegetable oil 1 large onion lengthwise thinly sliced 1/2 teaspoon salt or to taste 20 ounces pizza crust thawed if[...]

1 pound pizza dough store-bought or homemade, enough for 2 people, or as needed * 2 tablespoons olive oil 2 large red onions peeled, halved and thinly sliced[...]

2 1/2 tablespoons canola oil or other vegetable oil 1 large onion lengthwise thinly sliced 1/2 teaspoon salt or to taste 20 ounces pizza crust thawed if[...]