Spanish Style Tuna Salad
["8 c. bite-size pieces salad greens", "3 Tbsp. olive or vegetable oil", "4 tsp. red wine vinegar", "1/8 tsp. salt", "1/8 tsp. pepper", "1/2 small red onion, thinly sliced", "1 (6 1/8 oz.) can tuna in water, drained and flaked"]
["Toss salad greens, oil, vinegar, salt and pepper in large bowl.", "Add remaining ingredients.", "Toss."]
["bite-size pieces salad greens", "olive or", "red wine vinegar", "salt", "pepper", "red onion", "tuna"]