Southern Redneck Caviar

Name: Southern Redneck Caviar
Ingredients: 2 (15 7/8 ounce) cans black-eyed peas, drained; 2 (10 ounce) cans shoe peg corn or 2 (10 ounce) cans corn, drained; 2 (10 ounce) cans Ro-Tel tomatoes, drained; 1 (15 7/8 ounce) can black olives, chopped; 1 green pepper, chopped really small; 1 red pepper, chopped really small; 1 (15 7/8 ounce) can black beans, drained; 1 larger purple onion, chopped really small; 3 ripe tomatoes, chopped small; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1 teaspoon cumin; 1 teaspoon chili powder (optional, only if you want a bit of a kick to it); 1 teaspoon parsley flakes; 16 ounces house Italian dressing or 16 ounces zesty Italian dressing