Tuna Casserole

1 can tuna, drained
1/2 cup mayonnaise or miracle whip
1/2 cup milk
1 can cream of mushroom soup
1/8 teaspoon dry mustard
1 cup velveeta cheese, cubed
1 cup uncooked pasta (macaroni, shells, rotini, egg noodles)
1/2 cup crushed saltine crackers

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Heat oven to 350 degrees. Cook pasta in boiling salted water according to package directions. Drain and set aside. In a 1 1/2 quart ovenproof dish mix together milk, mayo, soup and dry mustard until smooth. Add velveeta, cooked pasta and tuna, folding to combine. Cover and bake 25 minutes. Remove from oven and sprinkle with crushed saltine crackers. Bake uncovered 5 minutes more.