High Protein Blueberry Cream Cheese Croissant Casserole (Print Version)

High protein blueberry cream cheese croissant casserole packed with fresh berries, rich filling, and a golden baked finish. Great for meal prep.

# Recipe Info:

Prep Time: 15 Minutes minutes
Cook Time: 40 Minutes minutes
Total Time: 55 minutes
Servings: 8 Servings
Difficulty: Beginner
Cuisine: American
Dietary: Vegetarian

# Ingredients:

→ Buttery Croissant Base

01 - 8 large day-old croissants, torn into 2-inch chunks
02 - 2 tbsp unsalted butter, melted
03 - 1 tsp vanilla extract

→ Velvety Protein Custard

04 - 8 large eggs
05 - 1 cup whole milk
06 - 1 cup plain Greek yogurt (2% or full-fat)
07 - 1/2 cup vanilla protein powder (whey or casein)
08 - 3 tbsp honey
09 - 1 tsp ground cinnamon
10 - 1/4 tsp ground nutmeg

→ Tangy Cream Cheese Swirl

11 - 8 oz full-fat cream cheese, softened
12 - 1/4 cup powdered sugar
13 - 2 tbsp fresh lemon juice
14 - 1 tsp lemon zest

→ Blueberry Burst Topping

15 - 2 cups fresh blueberries
16 - 2 tbsp granulated sugar
17 - 1/4 cup sliced almonds

# Instructions:

01 - Preheat your oven to 350°F and generously grease a 9x13-inch baking dish with cooking spray or butter. Using a day-old croissant base ensures the chunks absorb the custard beautifully without turning mushy, which is key for this High Protein Blueberry Cream Cheese Croissant Casserole.
02 - Tear all 8 large day-old croissants into 2-inch chunks and spread them evenly across the prepared baking dish. Drizzle 2 tbsp melted unsalted butter and 1 tsp vanilla extract over the croissant pieces, tossing gently to coat every chunk for maximum buttery flavor.
03 - In a large mixing bowl, whisk together 8 large eggs, 1 cup whole milk, 1 cup plain Greek yogurt, 1/2 cup vanilla protein powder, 3 tbsp honey, 1 tsp ground cinnamon, and 1/4 tsp ground nutmeg until completely smooth and lump-free. Pour this velvety protein custard evenly over the croissant chunks, pressing pieces down gently to soak.
04 - In a medium bowl, beat 8 oz softened full-fat cream cheese with 1/4 cup powdered sugar, 2 tbsp fresh lemon juice, and 1 tsp lemon zest until silky smooth. Drop generous spoonfuls of this tangy cream cheese mixture across the top of your High Protein Blueberry Cream Cheese Croissant Casserole, then swirl lightly with a knife.
05 - Scatter 2 cups fresh blueberries evenly over the casserole, then sprinkle 2 tbsp granulated sugar directly over the berries to encourage them to burst and caramelize during baking. Finish by distributing 1/4 cup sliced almonds across the top for a golden, nutty crunch that elevates every bite.
06 - Bake your High Protein Blueberry Cream Cheese Croissant Casserole uncovered at 350°F for 38-40 minutes, until the custard is fully set in the center, the top is deep golden brown, and the blueberries are bubbling. Insert a knife into the center — it should come out clean with no wet custard.
07 - For the best High Protein Blueberry Cream Cheese Croissant Casserole results, remove from the oven and let it rest uncovered for 10 minutes before slicing. This allows the custard to fully set, making clean, beautiful portions. Serve warm as-is or with a light drizzle of honey and a dusting of powdered sugar.

# Notes:

01 - 🧊 Storage Tip: Store leftover casserole tightly covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave for 60-90 seconds or warm the whole dish in a 325°F oven for 15 minutes.
02 - 🔄 Substitution Tip: No vanilla protein powder on hand? Use unflavored whey protein and add an extra 1 tsp vanilla extract to the custard. Plant-based protein powder also works well for a dairy-free-friendly adaptation.
03 - 🍓 Ingredient Swap: Frozen blueberries can replace fresh — no need to thaw, but expect slightly more liquid in the finished casserole. Raspberries or blackberries make a delicious seasonal swap for the blueberry burst topping.
04 - 🍽️ Serving Suggestion: This casserole makes a stunning high-protein brunch centerpiece. Pair each serving with a side of extra Greek yogurt and a drizzle of maple syrup for a complete, satisfying meal that delivers roughly 25-28g of protein per slice.

# Tools You'll Need:

01 - 9x13 inch baking dish
02 - large mixing bowl
03 - medium mixing bowl
04 - hand mixer or stand mixer
05 - whisk
06 - rubber spatula
07 - measuring cups and spoons
08 - zester or microplane
09 - aluminum foil
10 - oven

# Nutrition Facts (Per Serving):

Calories: 520 kcal
Total Fat: 26 g
Total Carbohydrate: 48 g
Protein: 28 g

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