Easy to double or triple this recipe if you're feeding a crowd!
1 can (12 oz) white water-packed tuna, drained and flaked
1/2 cup frozen mixed veggies, thawed and chopped
1/3 cup mayonnaise
2 tbsp finely chopped onion
1 tbsp ranch salad dressing mix
4 hamburger buns,split
Combine the first five ingredients in a large bowl. Spoon tuna mixture onto bun bottoms; replace tops. Place each sandwich on a piece of heavy-duty foil. Fold foil around each sandwich and seal tightly; place packets on a baking sheet. Bake at 400 for 10-15 minutes or until heated through.