Cheesy Potatoes With Onions Recipe

Creamy, cheesy, and utterly irresistible! This oven-baked potato casserole is comfort food at its finest. Perfectly seasoned potatoes and onions are layered with melted cheese and a creamy, dreamy sauce, then baked to golden perfection. Get ready for a side dish that will steal the show!

Prep Time 20 mins
Cook Time 55 mins
Calories 538.1 kcal
Protein 41g
Rating 5.0 (5 Reviews)
Cheesy Potatoes With Onions 27

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Cheesy Potatoes With Onions

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How to Make Cheesy Potatoes With Onions

  1. Preheat oven to 400°F (200°C).
  2. Butter a 13 x 9-inch baking dish.
  3. Peel and thinly slice 2 lbs russet potatoes. Cook the sliced potatoes in boiling salted water for 5 minutes. Drain well.
  4. Thinly slice 1 large yellow onion.
  5. Layer one-third of the partially-cooked potatoes in the bottom of the prepared baking dish. Top with one-third of the onion slices and one-third of 1 lb shredded cheddar cheese.
  6. Sprinkle with salt and pepper (to taste). Repeat layers two more times.
  7. Sprinkle the remaining shredded cheddar cheese over the top layer.
  8. In a medium heavy saucepan, melt 2 tablespoons of butter over low heat.
  9. Whisk in 2 tablespoons of all-purpose flour and a pinch of cayenne pepper. Cook for 1 minute, stirring constantly.
  10. Slowly whisk in 1 ½ cups of milk. Continue whisking until the sauce is smooth, bubbly, and thickened.
  11. Pour the creamy sauce evenly over the cheese and potato layers.
  12. Bake for 35-40 minutes, or until the potatoes are tender and the top is golden brown and bubbly.
  13. Let stand for 10 minutes before serving. Enjoy!

Nutrition Information (Approximate per serving)

Sodium

29 g

Sugar

48g

Fat

82g

Carbs

18g

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