I forgot to post that my kids like tuna with I add and egg and a little bread crumbs and then fry it in a pan in patties. They love those!
This is a great Asian Tuna Patties recipe. It doesn't even taste like "tuna" when it's blended & cooked.

(I leave out the Teriyaki sauce as I don't have any.)
Asian Tuna Patties
http://allrecipes.com/Recipe/Asian-Tuna-Patties/Detail.aspx
218 4 star reviews
Ingredients:
2 (6 ounce) cans tuna, drained and flaked
1 egg, beaten
3/4 cup dry bread crumbs
3 green onions, minced
1 clove garlic, peeled and minced
1 tablespoon soy sauce
1 tablespoon teriyaki sauce
1 tablespoon ketchup
1 teaspoon sesame oil
1 teaspoon black pepper
1/2 cup cornmeal
2 tablespoons vegetable oil
Directions:
1. In a large bowl, mix tuna, egg, bread crumbs, green onions, and garlic. Blend soy sauce, teriyaki sauce, ketchup, sesame oil, and pepper into the mixture. Form the mixture into about 6 patties approximately 1 inch thick. Lightly sprinkle each patty on all sides with cornmeal.
2. Heat oil in a medium skillet over medium heat. Fry each patty about 5 minutes on each side, until golden brown.