Easy Cheesy Tuna Casserole

I tried this - the kids loved it :) (that's rare here lol). From Kraft Macaroni and Cheese

• Ready In: 50 mins
• Serves: 6

Ingredients

• 1 (7 1/4ounce) package  kraft  macaroni & cheese dinner mix
• 1⁄4 cup butter (not spread or tub product) or 1⁄4 cup margarine (not spread or tub product)
• 1⁄4 cup milk
• 1 (10 3/4ounce) can  condensed cream of celery soup
• 1⁄2 cup milk
• 1 (6 ounce)  canned tuna, drained
• 1⁄2 medium  red pepper, chopped
• 2  green onions, sliced
• 1  cup  crushed  potato chips

Directions

1. Preheat oven to 350°F
2. Prepare the Mac-n-Cheese dinner according to package directions.
3. Stir in soup, milk, tuna, red pepper and onion.
4. Spoon into 2-quart casserole dish; top with crushed chips.
5. Bake 30 minutes or until heated through.