This easy blueberry blintz casserole combines frozen cheese blintzes, blueberry pie filling, and a creamy egg-and-sour-cream topping in one simple 9-by-13-inch baking dish. Bake it uncovered at 350°F (175°C) for 35–40 minutes, let it rest for 5–10 minutes, and you have a warm, fruity casserole ready in approximately 50–65 minutes.
Although this recipe is listed in the Dinner category, it is especially delicious for breakfast, brunch, or a sweet supper. The blintzes become tender and creamy as they bake, while the blueberry layer adds jammy fruit flavor and the lightly sweet sour-cream topping forms a smooth, golden finish.
Jump to RecipeWhy You’ll Love This Recipe

This blueberry blintz casserole delivers the cozy flavor of cheese blintzes without requiring you to make crepes from scratch. Frozen blintzes do the work of creating tender, cheese-filled layers, while canned blueberry pie filling supplies a sweet, saucy fruit center.
The topping is made with only sour cream, sugar, vanilla, and eggs. It bakes into a soft, creamy layer that balances the sweetness of the blueberries and gives every slice a rich, lightly tangy finish.
Assembly takes only 10–15 minutes, making this a practical choice when you want something special without spending the entire morning in the kitchen. For another fruit-forward idea, you can also try this blueberry dessert when planning a brunch spread.
Ingredients You’ll Need

The ingredient list is short, but each item has an important role. Choose frozen cheese blintzes that fit comfortably in a single layer in your baking dish, and keep them frozen until you are ready to assemble.
- Frozen cheese blintzes: Use 2 packages, 13 ounces each, or about 12 blintzes total.
- Blueberry pie filling: One 21-ounce can provides a glossy, concentrated blueberry layer.
- Sour cream: One cup forms the creamy base of the topping.
- Granulated sugar: A half cup sweetens the sour cream and helps it bake into a smooth topping.
- Vanilla extract: One teaspoon adds warm dessert flavor.
- Eggs: Two large eggs help the sour-cream mixture set as it bakes.
For serving, set out additional sour cream, fresh blueberries, or confectioners’ sugar. You can offer all three and let everyone finish their portion at the table.
If you are building a menu with both sweet and savory baked dishes, our easy turkey casserole makes a hearty contrast for a later meal.
How to Make It Step-by-Step

Step 1: Heat the oven to 350°F (175°C), giving it time to reach the correct temperature while you assemble the dish. Lightly grease a 9-by-13-inch baking dish, paying attention to the corners and sides where the topping may touch.
Step 2: Arrange the frozen cheese blintzes in a single layer in the prepared baking dish. Do not thaw them first, because frozen blintzes hold their shape better and cook properly during the covered-by-toppings bake.
Step 3: Spoon the blueberry pie filling over the blintzes. Use the back of a spoon or a small spatula to spread the filling evenly, taking it close to the edges so the fruit layer is balanced throughout the casserole.
Step 4: In a medium bowl, whisk together the sour cream, granulated sugar, vanilla extract, and two large eggs. Mix until the mixture looks smooth and cohesive, with the eggs fully incorporated into the sour cream.
Step 5: Pour the sour-cream mixture over the blueberry layer. Pour slowly in several areas rather than in one spot, then gently spread it if needed so the topping covers the casserole as evenly as possible.
Step 6: Bake the casserole uncovered for 35–40 minutes at 350°F (175°C). It is ready when the sour-cream topping is set and the casserole is hot throughout; the center should no longer look loose or liquid.
Step 7: Let the casserole stand for 5–10 minutes before cutting into it. This short rest allows the topping to firm up and helps the portions hold their shape when transferred to plates.
Step 8: Serve the casserole warm with optional additional sour cream, fresh blueberries, or confectioners’ sugar. Add the finishing touches just before serving for the freshest appearance and best contrast of colors.
Pro Tips for the Best Casserole

Keep the blintzes frozen. This is the most important preparation tip. Thawing is unnecessary, and frozen blintzes are easier to arrange without tearing or losing their shape.
Spread each layer evenly. Even coverage ensures that every serving contains blintz, blueberry filling, and creamy topping. If the pie filling is thick, place small spoonfuls across the surface before spreading them together.
Do not cover the baking dish. Baking uncovered allows the sour-cream topping to set properly and gives the finished casserole its appealing, lightly golden surface.
Allow the full resting time. The casserole will be hot when it leaves the oven, and the 5–10 minute rest makes it easier to portion. Cutting immediately can cause the topping and filling to slide.
For a savory option to serve at another occasion, consider this comforting beef casserole. Its rich, familiar flavors make a nice alternative when your menu needs something hearty rather than sweet.
Serving Ideas

Serve each portion warm with a spoonful of additional sour cream for a cool, tangy contrast. Fresh blueberries add a bright, juicy finish, while confectioners’ sugar gives the casserole a classic bakery-style presentation.
A simple cup of coffee, tea, or sparkling water is all you need alongside this dish. If you are serving it for brunch, add fresh fruit or a crisp green salad to bring freshness to the table.
This casserole is also a good choice for a relaxed dinner with a sweet main-course theme. For a savory starter or snack before dessert, you could add an easy fiesta dip with vegetables and crackers.
Storage and Reheating

Let leftovers cool, then refrigerate them in a covered container. Store optional garnishes separately when possible so the sour cream, blueberries, and confectioners’ sugar stay fresh and attractive.
Reheat portions gently until warmed through, taking care not to overheat the creamy topping. The casserole is best enjoyed warm, and a small spoonful of fresh sour cream or a few blueberries can refresh each serving.
If you have a mixed menu and need another warm, comforting dish, this vegetarian ramen with savory broth offers a completely different but satisfying direction.

Easy Blueberry Blintz Casserole Recipe
Ingredients
Method
- Heat the oven to 350°F (175°C). Lightly grease a 9-by-13-inch baking dish so the casserole portions release more easily after baking.
- Arrange the frozen cheese blintzes in a single layer in the prepared dish. Use them straight from the freezer; thawing is not necessary and may make them harder to arrange neatly.
- Spoon the blueberry pie filling over the blintzes and spread it as evenly as possible. Try to cover the surface from edge to edge so each serving receives plenty of blueberry flavor.
- Whisk the sour cream, granulated sugar, vanilla extract, and eggs together in a bowl until smooth. Continue whisking until the sugar is distributed and no visible streaks of egg remain.
- Pour the sour-cream mixture evenly over the blueberry layer. Bake the casserole uncovered for 35–40 minutes, until the topping is set and the casserole is hot throughout.
- Remove the dish from the oven and let it stand for 5–10 minutes. Serve warm with optional sour cream, fresh blueberries, or a dusting of confectioners’ sugar.
Notes
Final Thoughts
Easy blueberry blintz casserole is a wonderfully simple way to turn frozen cheese blintzes into a warm, inviting dish with very little preparation. The sweet blueberry filling, creamy sour-cream topping, and tender cheese centers create a combination that feels festive enough for brunch yet relaxed enough for a family dinner.
Remember to assemble the blintzes straight from the freezer, bake the casserole uncovered at 350°F (175°C) for 35–40 minutes, and let it rest for 5–10 minutes before serving. Finish each portion with fresh blueberries, extra sour cream, or confectioners’ sugar, and enjoy this comforting fruit-filled bake while it is warm.