Shoestring Salad

Ingredients

• 1 can (12 ounces) tuna, drained and flaked
• 1 cup shredded carrot
• 1 cup chopped celery
• 1/2 cup mayonnaise
• 1/4 cup chopped onion
• 1 to 2 tablespoons prepared mustard
• 1 cup shoestring potato sticks