ziti cheddar salad recipe

1 can (7oz) pork luncheon meat (Spam)
1/2 cup mayonnaise
1 to 2 tbs vinegar
1 tbs instant minced onion
1 tsp prepared mustard
1 can (about 8oz) mixed vegetables, drained
1 can (about 1 1/2oz) shoestring potatoes
3 tbs grated Parmesan cheese

Cut luncheon meat into 1/4-inch cubes, brown in skillet over medium heat, stirring occasionally. Remove from heat and drain. Stir in mayo, vinegar, onion, mustard, and mixed vegetables; toss. Just before serving, fold in potatoes and sprinkle with cheese. Serve hot.