Ingredients

• 4 russets potatoes , sliced into 1/4 inch slices
• 1 onion , sliced into rings
• salt and ground black pepper to taste
• 3 tablespoons butter
• 0.25 cups all-purpose flour
• 0.5 teaspoons salt
• 2 cups low-fat , 1%
• 1.5 cups shredded reduced-fat Cheddar cheese

Instructions

1. 1 Preheat oven to 400 degrees F (200 degrees C). Lightly butter a 1-quart baking dish.
2. 2 Layer half the potatoes into the bottom of prepared baking dish. Top with onion slices and add remaining potatoes.
3. 3 Season potatoes with salt and pepper.
4. 4 Melt butter over medium heat in a saucepan. Mix in flour and salt, stirring constantly with a whisk, for one minute. Stir in milk. Cook until mixture has thickened. Add Cheddar cheese and continue stirring until melted, 30 to 60 seconds.
5. 5 Pour cheese sauce over potatoes and cover dish with aluminum foil.
6. 6 Bake in the preheated oven until cheese sauce is bubbling and potatoes are tender, about 1 1/2 hours.

Nutrition per serving