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Cheesy Au Gratin Potatoes with Onions and Parmesan Crust

Cheesy Au Gratin Potatoes with Onions and Parmesan Crust layers tender russets and sweet onions under a velvety Cheddar–Asiago cream sauce, then tops it with a crisp Parmesan and cracker crumble. The result is creamy inside, crunchy on top, and richly cheesy throughout. It’s perfect for holiday tables, Sunday dinners, or any time you want a comforting, crowd-pleasing side.

  • Prep25 mins
  • Cook50 mins
  • Serves10
  • DifficultyMedium
Cheesy Au Gratin Potatoes with Onions and Parmesan Crust

easyChef Pro health score

Calculated from USDA-referenced nutrient data for the ingredients in Cheesy Au Gratin Potatoes with Onions and Parmesan Crust, not estimated by an AI model. The same recipe returns the same score every time.

37 Health Score
Glycemic ImpactFair
53 / 100
Carb quality, not quantity. Higher is better.
Nutritional DensityPoor
1 / 100
Nutrients per calorie. Higher is better.
Energy DensityFair
58 / 100
Calories by weight. Higher means more food for fewer calories.
NOVA Processed Culinary Ingredients
2 / 4
Processing level, 1 (whole) to 4 (ultra-processed). Lower is better.

How it scores for each health goal

The same recipe scores differently against different goals, because the goal changes the calculation rather than filtering a list. Set your goal in easyChef Pro and every recipe is scored against it.

24
Heart Health
64
Metabolic
27
Digestive
20
Inflammatory
27
Performance
34
General Wellness
  1. 1

    Put the potatoes in a large pot, cover with water, add salt, and bring to a boil. Lower the heat to medium-low and simmer until they just start to soften, 15 to 20 minutes; drain.

  2. 2

    Melt the butter in a saucepan over medium heat; add the flour and whisk until it thickens, 1 to 2 minutes. Pour in the milk and heavy cream; cook and stir until smooth, 2 to 3 minutes. Stir in the Cheddar and Asiago cheese until melted; cook, stirring constantly, until smooth and creamy, 1 to 2 minutes. Season the sauce with salt and pepper.

  3. 3

    Preheat the oven to 400 degrees F (200 degrees C). Butter a 9x13-inch casserole dish.

  4. 4

    Arrange about half of the sliced potatoes in the bottom of the baking dish. Place the sweet onion slices and green onions on top; pour about 1/3 of the cheese sauce over the onions. Arrange the remaining potato slices in the dish; pour the remaining cheese sauce over the potatoes. Sprinkle Parmesan cheese and crushed crackers over the top.

  5. 5

    Bake in the preheated oven until hot in the center and starting to brown at the edges, about 30 minutes. Sprinkle parsley over the top to serve.

About This Recipe

Cheesy Au Gratin Potatoes with Onions and Parmesan Crust is made with 14 ingredients and serves 10. It takes about 1 hr 15 mins and is rated medium. Key ingredients include All Purpose Flour, Assorted Crackers, Black Pepper, and Fresh Parsley. Each serving provides about 592.03 kcal, and is a good source of protein.

Recipe Questions

What is Cheesy Au Gratin Potatoes with Onions and Parmesan Crust made of?
The main ingredients are All-Purpose Flour, Assorted Crackers, Black Pepper, Fresh Parsley, Green Onion. The full list of 14 is above.
How long does it take to make Cheesy Au Gratin Potatoes with Onions and Parmesan Crust?
About 1 hr 15 mins in total: 25 mins to prepare and 50 mins to cook.
How many calories are in one serving?
One serving provides about 592.03 kcal. The full nutrition breakdown is above.
Is Cheesy Au Gratin Potatoes with Onions and Parmesan Crust easy to make?
This recipe is rated medium, with 14 ingredients and 5 steps.
Is Cheesy Au Gratin Potatoes with Onions and Parmesan Crust healthy?
Cheesy Au Gratin Potatoes with Onions and Parmesan Crust has an easyChef Pro health score of 37/100. Per serving, it provides 592.03 calories and 20.53 g of protein, or 41% of the Daily Value. It is a good source of calcium and vitamin C. Worth noting per serving: sodium at 510.27 mg (22% of the Daily Value) and saturated fat at 21.15 g (106% of the Daily Value). It contains Milk, Wheat, Gluten, Corn and Onions, so it may not be suitable for people with those allergies or dietary restrictions. Whether it fits your goals depends on your complete meal plan and nutritional needs. Remix it in easyChef Pro to adjust the ingredients and generate fresh nutrition and scores.

How easyChef Pro scores recipes and products

easyChef Pro analyzes up to 41 nutrients using data sourced from USDA and other verified food databases. Its scoring method uses the nutrients relevant to nutrition quality, calorie density, processing level, and your selected health goal. Recipes and food products get a health score from 0 to 100, calculated using consistent rules instead of being estimated by AI. The same nutrition data, serving size and health goal will produce the same result.

The calculation evaluates nutrients, calorie density, processing level, and how well the food supports your selected health goal. Protein, fiber, vitamins, minerals and other beneficial nutrients can strengthen the score. High amounts of sodium, saturated fat, added sugar and other nutrients may lower it.

Your health goal also matters. easyChef Pro evaluates recipes and products across six health areas and adjusts their importance for your selected goal. This means the same food may be a better fit for one health goal than another.

For recipes, changing an ingredient, quantity or serving size changes the nutrition and may change the score. Remix the recipe in easyChef Pro to calculate fresh nutrition and scores for the version you actually make. Product scores are based on the nutrition and serving information associated with that specific product.

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