High Protein Zwiebelkuchen

Elevate your traditional German onion pie with this High Protein Zwiebelkuchen, a nutritious twist on a comforting classic. This protein-packed recipe swaps in whey protein powder and non-fat Greek yogurt to create a tender, wholesome crust with a fraction of the guilt. The filling stars caramelized onions folded into a creamy blend of low-fat cottage cheese, quark, and aromatic spices like nutmeg and caraway seeds. Perfect for meal prep or gatherings, this savory tart is baked to golden perfection and serves as a filling, high-protein option for lunch, dinner, or even a hearty snack. Whether served warm or at room temperature, this crowd-pleasing Zwiebelkuchen is both indulgent and nutritious—ideal for anyone seeking a balanced yet flavorful dish.

Nutriscore Rating: 75/100

Prep Time:25 mins

Cook Time:45 mins

Total Time:70 mins

Servings: 6

Ingredients

• 150 g All-purpose flour
• 40 g Whey protein powder (unflavored)
• 150 g Greek yogurt (non-fat)
• 1 large Egg
• 0.5 tsp Salt
• 700 g Onions
• 1 tbsp Olive oil
• 250 g Cottage cheese (low-fat)
• 200 g Quark or plain Greek yogurt (low-fat, for filling)
• 3 large Eggs
• 0.25 tsp Black pepper
• 0.25 tsp Nutmeg
• 1 tsp Caraway seeds (optional)

Directions

Step 1

Preheat your oven to 180°C (356°F). Lightly grease and line a 10-inch tart pan with parchment paper.

Step 2

In a large mixing bowl, combine the all-purpose flour, whey protein powder, and 0.5 tsp of salt.

Step 3

Add 150g of Greek yogurt and 1 beaten egg to the bowl. Mix the ingredients into a dough. If the dough feels too wet, add a small amount of flour, 1 tbsp at a time.

Step 4

Roll out the dough on a floured surface and press it into the tart pan. Trim any excess dough and pierce the bottom with a fork. Set aside.

Step 5

Thinly slice the onions. Heat 1 tbsp of olive oil in a large skillet over medium heat and saute the onions until soft and slightly caramelized, about 8-10 minutes. Remove from heat and let cool.

Step 6

In another bowl, whisk the 3 eggs with the cottage cheese and 200g of quark or plain Greek yogurt. Season the mixture with black pepper, nutmeg, and caraway seeds (if using).

Step 7

Fold the cooled onions gently into the egg and cheese mixture.

Step 8

Pour the onion filling into the prepared crust, spreading it out evenly with a spatula.

Step 9

Bake the Zwiebelkuchen in the preheated oven for 40-45 minutes, or until the filling sets and the top turns golden brown.

Step 10

Allow the pie to cool for 10 minutes before slicing. Serve warm or at room temperature.

Nutrition Facts

Serving size	1716.1 grams (1716.1g)

Amount per serving	% Daily Value*
Calories	1856

Total Fat 48.80g	63%
Saturated Fat 16.20g	81%
Polyunsaturated Fat 3.40g
Cholesterol 831mg	277%
Sodium 2480mg	108%
Total Carbohydrate 200.20g	73%
Dietary Fiber 17.00g	61%
Total Sugars 60.00g
Protein 146.50g	293%

Vitamin D 177IU	884%
Calcium 1038mg	80%
Iron 13mg	74%
Potassium 2657mg	57%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 24.1%

Protein: 32.1%

Carbs: 43.9%