Cheesy Tuna Casserole - cooking recipe

Ingredients

1 (7 1/4 ounce) package kraft macaroni & cheese dinner mix (with seasoning packet)
1 (10 3/4 ounce) can cream of celery soup
1/2 cup mayonnaise or 1/2 cup Miracle Whip
0.5 (5 1/2 ounce) can milk
1 cup grated cheddar cheese
1 (6 ounce) canned tuna, drained
1 teaspoon black pepper
1/2 1/2 cup onions or 1/2 cup green pepper
1 cup crushed goldfish crackers or 1 cup Ritz cracker

Preparation

Cook macaroni noodles until tender and drain.
Mix together all ingredients (except 1/2 cup of the cheddar and the crushed crackers) in 3 L casserole dish and top with remaining 1/2 cup of cheddar and crackers.
Bake at 325 degrees for 30-40 minutes.