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Hands-on Time
35 Mins
Total Time
1 Hour 30 Mins
Yield
Makes 8 servings
Photo: Greg Dupree; Styling: Buffy Hargett Miller 

How to Make It

Step 1

Preheat oven to 350°. Prepare pasta according to package directions.

Step 2

Meanwhile, cook green beans in boiling salted water to cover 30 seconds to 1 minute or until crisp-tender; drain. Plunge into ice water to stop the cooking process; drain.

Step 3

Melt 2 Tbsp. butter in a large skillet over medium-high heat. Add leeks, and sauté 2 minutes; add mushrooms, and sauté 5 minutes or until lightly browned. Transfer leek mixture to a small bowl. Wipe skillet clean.

Step 4

Melt 4 Tbsp. butter in skillet over medium heat; whisk in flour, and cook, whisking constantly, 2 minutes. Gradually whisk in cream and broth. Bring mixture to a boil, stirring often. Reduce heat to medium-low; gradually whisk in Cheddar cheese and 4 Tbsp. Parmesan cheese until smooth. Stir in salt and pepper.

Step 5

Stir cream mixture into pasta. Stir in tuna, next 2 ingredients, beans, and leek mixture; transfer to a lightly greased 13- x 9-inch baking dish.

Step 6

Stir together potato chips, next 2 ingredients, and remaining 2 Tbsp. Parmesan cheese in a small bowl; sprinkle over pasta mixture.

Step 7

Bake at 350° for 35 to 40 minutes or until bubbly. Let stand 5 minutes before serving.

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