Minnesota Mom's Style Spam

Name: Minnesota Mom’s Style Spam Salad
Ingredients: 1/2c mayonnaise; 2T creamy yellow mustard; 1t Lemon pepper; salt and pepper to taste; 1 Box gluten free elbow macaroni; 1 can cubed spam; 1 small bag frozen peas; ¼c chopped onion; 1c chopped celery; 1c diced cheddar cheese