Easy Black Beans and Rice

Name: Easy Black Beans and Rice
Ingredients: 1 cup uncooked long-grain white rice; 1 tablespoon extra virgin olive oil; 1 small onion, chopped; 1/2 green bell pepper , thinly sliced; 1/2 red bell pepper , thinly sliced (for added flavor, you can substitute roasted red bell peppers or some chopped pimentos); 3 cloves garlic, minced; 2 (16-ounce) cans black beans , rinsed and drained; 2 tablespoons white vinegar; A few dashes of Tabasco or 1/4 teaspoon cayenne powder; 1 teaspoon dried oregano or 1 heaping tablespoon fresh oregano, chopped; Kosher salt and freshly ground black pepper, to taste; Lime wedges and cilantro for garnish , optional