High-Protein Cottage Cheese and Onion Bake Recipe
Introduction
This High-Protein Cottage Cheese and Onion Bake is a savory, satisfying dish perfect for breakfast, brunch, or a light dinner. Featuring caramelized onions and creamy cottage cheese with Gruyère, it combines rich flavors and a smooth texture in every bite.

Ingredients
- 2 cups small-curd cottage cheese (must be well-drained)
- 2 large yellow onions, thinly sliced
- 3 large eggs
- 1 tablespoon cornstarch
- 1 cup shredded Gruyère cheese, divided
- 1 teaspoon fresh thyme leaves
- 1 tablespoon butter
- ½ teaspoon salt
- ¼ teaspoon black pepper
Instructions
- Step 1: In a large skillet over medium-low heat, melt the butter. Add the sliced onions and cook slowly and uncovered for 30-40 minutes. Stir occasionally at first, then more frequently as they begin to color. Cook until they are a deep, jammy amber brown. Set aside to cool slightly.
- Step 2: While the onions cook, place the cottage cheese in a fine-mesh strainer set over a bowl. Let it drain for at least 20 minutes. Press gently with a spoon a few times to remove as much excess liquid as possible. Discard the liquid.
- Step 3: Preheat your oven to 375°F (190°C). Grease a 9-inch pie dish.
- Step 4: In a blender, combine the drained cottage cheese, eggs, and cornstarch. Blend for 45-60 seconds until the mixture is perfectly smooth, frothy, and free of lumps.
- Step 5: Pour the blended mixture into a mixing bowl. Stir in the fresh thyme, salt, and pepper. Gently fold in the cooled caramelized onions and ¾ cup of the shredded Gruyère cheese.
- Step 6: Pour the mixture into the prepared dish and spread evenly. Sprinkle the remaining ¼ cup of Gruyère cheese on top.
- Step 7: Bake for 35-40 minutes until the edges are set, the top is golden brown, and the center has a slight wobble but is not liquidy. Insert a knife about an inch from the center—it should come out clean.
- Step 8: Let the bake cool on a wire rack for 10–15 minutes before slicing to allow it to set firmly yet remain soft.
Tips & Variations
- Be patient while caramelizing onions to develop deep, sweet flavors and remove excess moisture.
- Drain the cottage cheese thoroughly to prevent a watery texture in the bake.
- For a different flavor, try adding fresh rosemary instead of thyme or using sharp cheddar instead of Gruyère.
- Serve warm with a fresh green salad for a balanced meal.
Storage
Store leftovers covered in the refrigerator for up to 3 days. Reheat gently in a low oven or microwave to maintain the bake’s creamy texture. Avoid reheating too long to prevent drying out.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use large-curd cottage cheese instead of small-curd?
Yes, but small-curd cottage cheese works best as it blends more smoothly, creating a creamier texture. If using large-curd, make sure to blend thoroughly to avoid lumps.
Can I prepare this dish in advance?
Absolutely. You can prepare the caramelized onions and drain the cottage cheese ahead of time. Assemble and bake just before serving for best results.
PrintHigh-Protein Cottage Cheese and Onion Bake Recipe
This High-Protein Cottage Cheese and Onion Bake is a savory, satisfying dish combining creamy cottage cheese, sweet caramelized onions, and nutty Gruyère cheese into a smooth, custard-like bake. Perfect as a comforting brunch option or a protein-packed side, this recipe highlights the depth of slowly cooked onions and a smooth, fluffy texture from blended cottage cheese and eggs.
- Prep Time: 30 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour 15 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: French-inspired
- Diet: Low Fat
Ingredients
Primary Ingredients
- 2 cups small-curd cottage cheese (well-drained)
- 2 large yellow onions, thinly sliced
- 3 large eggs
- 1 tablespoon cornstarch
- 1 cup shredded Gruyère cheese, divided
- 1 teaspoon fresh thyme leaves
- 1 tablespoon butter
- ½ teaspoon salt
- ¼ teaspoon black pepper
Instructions
- Caramelize the Onions: In a large skillet over medium-low heat, melt the butter. Add the thinly sliced onions and cook uncovered for 30-40 minutes, stirring occasionally at first, then more frequently as they begin to brown. The onions should become soft, jammy, and deep amber in color. Once done, set them aside to cool slightly.
- Drain the Cottage Cheese: Place the cottage cheese in a fine-mesh strainer over a bowl and let it drain for at least 20 minutes. Press gently with a spoon several times to remove excess whey. Discard the liquid to avoid a watery bake.
- Prepare the Oven and Dish: Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish to prevent sticking.
- Blend the Eggs and Cottage Cheese: In a blender, combine the well-drained cottage cheese, eggs, and cornstarch. Blend for 45-60 seconds until the mixture becomes perfectly smooth, frothy, and free of lumps.
- Mix Ingredients: Pour the blended custard base into a mixing bowl. Stir in fresh thyme, salt, and black pepper. Gently fold in the cooled caramelized onions and ¾ cup of shredded Gruyère cheese, ensuring even distribution.
- Assemble the Bake: Pour this mixture into the prepared pie dish and spread evenly. Sprinkle the remaining ¼ cup of Gruyère cheese on top for a golden, cheesy crust.
- Bake: Bake for 35-40 minutes until the edges are set and the top is golden brown. The center should have a slight wobble but no liquid. A knife inserted 1 inch from the center should come out clean.
- Cool: Remove from the oven and let the bake cool on a wire rack for 10-15 minutes. This cooling step helps the bake fully set, resulting in firm yet tender slices.
Notes
- Be patient when caramelizing onions to allow excess moisture to evaporate and deepen their flavor.
- Thoroughly drain cottage cheese to prevent a watery texture in the bake.
- Let the bake rest after oven time to ensure clean slicing and proper texture.
Keywords: cottage cheese bake, caramelized onions, high-protein casserole, Gruyère cheese recipe, savory bake, healthy side dish

