| 1 medium yellow onion, peeled and chopped |
| 4 aji dulce (Caribbean chiles), cored and chopped, or 1/2 Italian frying pepper, cored, seeded, and chopped |
| 1 green or red bell pepper, cored, seeded, and chopped |
| 3 cloves garlic, peeled and finely chopped |
| 1 1/4 cups canned crushed tomatoes |
| 1/2 pound string beans, trimmed, quartered crosswise, and boiled until tender |
| 1/2 bunch cilantro, trimmed and minced |
| 2 tablespoon pimiento stuffed olives, chopped |
| salt and freshly ground black pepper |