Ensalada Guanajuato (Five Bean Salad Guanajuato Style)

Grrrrrgh!
Course : Beans
From: HungryMonster.com
Serves: 6
 

Ingredients:

1 cup drained or canned cooked -- pinto beans
1 cup drained cooked black beans
1 can garbanzo beans -- drained (8-3/4 oz)
8 ounces cut green beans -- drained
1 cup drained canned wax beans
1/2 medium green pepper -- cut in thin
1/4 medium red onion -- thinly sliced
6 tablespoons vegetable oil
3 tablespoons vinegar
1/2 teaspoon salt
1/4 teaspoon dried leaf oregano -- crushed
1/8 teaspoon garlic powder
1 teaspoon freshly ground black pepper
1 medium tomato -- chopped, drained
3 tablespoons mayonnaise
 

Preparation:

If cooking your own pinto and black beans, cook until firm-tender and not mushy. Combine pinto beans, black beans, garbanzo beans, green beans and wax beans in a large bowl. Add green pepper and red onion. In a small bowl, mix oil, vinegar, salt, oregano, garlic powder and black pepper to taste. Pour over salad and toss gently but thoroughly. Cover and refrigerate overnight. Just before serving, add tomatoes and mayonnaise. Toss until well blended.