These baked nachos with cheese sauce are perfect to serve at a movie night, or at a party. An unexpected ingredient results in the ultimate cheese sauce recipe.
This recipe contains the following allergens. Click on the allergen to search for alternative recipes.
Made by Véronique
Published at 2023-07-21, this recipe is for 4 persons and takes 30 minutes.
Founder of Ohmydish (since 2014), she prefers to spend all day in the kitchen. Once working in the hospitality industry as an independent chef, she loves helping you gain confidence in the kitchen. With her easy-to-follow recipes, handy tips, and cooking knowledge, you'll make the most delicious dishes yourself! The recipes are accessible to everyone, from beginners to advanced home cooks.
Updated at: 2025-09-27
Preheat the oven to 200 degrees celsius.
Peel and finely chop the onion. Grate the cheddar and set aside.
Make the cheese sauce by melting the butter in a small saucepan. Stir in the flour and cook for a few minutes. Gradually add the milk to the roux and keep beating with a whisk to prevent lumps.
Add 2 teaspoons of smooth mustard and then gradually add the grated cheddar. Stir after each addition, until the cheese has melted and the sauce has become nice and thick.
Spread the tortilla chips over a large oven dish and pour the cheese sauce over them. Sprinkle over the finely chopped red onion, along with the slices of jalapeño.
Bake the nachos for around 10 minutes, until the cheese is nicely melted. Serve immediately and enjoy!
Which cheese is best for the cheese sauce?
You can use all sorts of cheese, such as cheddar, other mature hard cheeses, or grana padano. For a mild cheese sauce, you can use a young cheese.
Which tortilla chips are best for baked nachos?
You can use any sort of tortilla chips, such as plain or cheese flavour. The brand doesn't matter.
Per 1 serving / piece:
| Amount | Ingredient | Allergens | Kcal | Carbs | Carbs of which sugars | Fat | Fat of which saturated | Protein | Fibers | Sodium | Iron | Calcium | Magnesium | Potassium | Phosphorus | Copper | Zinc | Iodine | Selenium | Vitamin C | Vitamin D | Vitamin A | Vitamin B1 | Vitamin B2 | Vitamin B6 | Vitamin B12 | Vitamin B11 | Vitamin E | Vitamin K | Vitamin K1 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 75 | gram | of tortilla chips | soy | 381.75 | 49.88 g | 1.13 g | 17.70 g | 7.57 g | 5.32 g | 0.83 g | 487.50 mg | 1.35 mg | 82.50 mg | 56.25 mg | 135.00 mg | 157.50 mg | 0.30 mg | 0.60 mg | - | - | - | - | 0.02 mg | 0.08 mg | 0.08 mg | 0.26 mg | - | 11.25 µg | - | - | - |
| 6.25 | gram | butter | milk | 45.94 | 0.04 g | 0.04 g | 5.16 g | 3.38 g | 0.04 g | - | 0.31 mg | 0.01 mg | 0.81 mg | 0.13 mg | 0.94 mg | 1.25 mg | - | - | - | - | - | 0.08 mg | 0.06 mg | - | - | - | - | - | - | - | - |
| 6.25 | gram | of flour | gluten | 22.75 | 4.36 g | 0.09 g | 0.09 g | 0.01 g | 0.71 g | 0.18 g | 0.13 mg | 0.06 mg | 1.25 mg | 1.25 mg | 11.25 mg | 6.25 mg | 0.02 mg | 0.07 mg | - | - | - | - | - | 0.01 mg | 0.01 mg | 0.02 mg | - | 2.19 µg | - | - | - |
| 62.5 | ml | milk | milk | 38.75 | 2.69 g | 2.69 g | 2.13 g | 1.31 g | 2.31 g | - | 27.50 mg | - | 75.00 mg | 6.25 mg | 100.00 mg | 61.88 mg | 0.01 mg | 0.31 mg | - | - | 1.25 mg | 0.06 mg | 0.02 mg | 0.02 mg | 0.11 mg | 0.03 mg | 0.25 µg | 2.50 µg | - | - | - |
| 37.5 | gram | cheddar | milk | 150.75 | 0.48 g | 0.20 g | 12.44 g | 7.83 g | 10.46 g | - | 232.88 mg | 0.17 mg | 270.38 mg | 10.50 mg | 36.75 mg | 192.00 mg | 0.02 mg | 1.17 mg | 9.38 µg | 5.44 µg | - | 0.11 mg | 0.01 mg | 0.01 mg | 0.14 mg | 0.02 mg | 0.46 µg | - | 0.29 mg | 0.98 µg | - |
| 0.5 | teaspoon | mustard | mustard | 2.98 | 0.26 g | - | 0.14 g | 0.04 g | 0.18 g | - | 42.00 mg | 0.06 mg | 2.80 mg | 2.80 mg | 4.55 mg | 2.45 mg | 0.01 mg | 0.04 mg | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 0.13 | red onion | 5.63 | 0.95 g | 0.95 g | 0.03 g | 0.02 g | 0.19 g | 0.39 g | 1.41 mg | 0.08 mg | 4.69 mg | 1.56 mg | 27.34 mg | 6.56 mg | 0.01 mg | 0.13 mg | - | - | 1.02 mg | - | - | - | - | 0.02 mg | - | 1.56 µg | - | - | - | ||
| 2 | slice | jalapeño | 2.90 | 5.70 g | 0.41 g | 0.04 g | 0.01 g | 0.09 g | 0.28 g | 0.30 mg | 0.04 mg | 1.50 mg | 1.40 mg | 25.50 mg | 2.30 mg | 0.01 mg | 0.02 mg | - | 0.04 µg | 11.80 mg | - | 103.30 mg | 0.01 mg | 0.01 mg | 0.03 mg | - | 2.70 µg | 0.07 mg | 1.40 µg | - | |
| 651.44 | 64.36 g | 5.51 g | 37.73 g | 20.16 g | 19.31 g | 1.67 g | 792.02 mg | 1.76 mg | 438.93 mg | 80.14 mg | 341.33 mg | 430.19 mg | 0.37 mg | 2.33 mg | 9.38 µg | 5.48 µg | 14.07 mg | 0.25 mg | 103.41 mg | 0.13 mg | 0.35 mg | 0.38 mg | 0.72 µg | 20.20 µg | 0.36 mg | 2.38 µg | - | ||||
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