4 medium sweet potatoes (about 1 1/2 pounds), peeled and cut into 1-inch chunks
1 large onion, preferably red, chopped
1/2 cup extra virgin olive oil
Salt and freshly ground black pepper
1 to 2 tablespoons minced fresh hot chili, like jalapeño
1 clove garlic, peeled
Juice of 2 limes
2 cups cooked black beans, drained (canned are fine)
1 red or yellow bell pepper, seeded and finely diced
1 cup chopped fresh cilantro.