2 cans (15 ounces) black-eyed peas or black beans (try a mix, or other types)
1 1/2 cups corn (canned and drained, frozen, or fresh-cooked)
1 bunch cilantro
1 bunch green onions (5 green onions)
3 medium tomatoes
1 avocado (optional)
1 tablespoon canola or vegetable oil
2 tablespoons vinegar or lime juice
1/2 teaspoon each salt and pepper