Black Bean Salsa

1 can black beans, rinsed and drained
1 c. frozen corn, thawed
2 tomatoes, chopped
½ onion, chopped
2 limes, juiced
cilantro, chopped to taste
1 pkt. Italian dressing mix
¼ c. oil
2 Tbsp. water
¼ c. vinegar

Combine all ingredients. Serve with tortilla chips.