Ranch Tuna Cobb Salad

4 cups torn green leaf lettuce
2 medium tomatoes, chopped
1 can (6 oz.) tuna, drained and flaked or 1-1/2 cups cut-up cooked chicken
1 ripe avocado, peeled and diced
2 hard-cooked eggs, chopped
2 Tbsp. chopped green onions
2 slices bacon, crisp-cooked and crumbled or 2 Tbsp. real bacon bits
1/3 cup Wish-Bone® Ranch Dressing