How to Make SOUTHWEST TUNA SALAD Recipe. Step-by-Step. is perfect for busy families. Comes together quickly with a few staple ingredients! INGREDIENTSSALAD 2 (6 ounce) cans tuna, drained 1 (2 1/2 ounce) can sliced black olives, drained and rinsed 1 (4 ounce) can diced mild green chilies, drained...