This 7 layer casserole is a festive, crowd-pleasing dish perfect for holiday potlucks. Combining layers of hearty ingredients and creamy textures, it balances flavors and colors beautifully, making it both delicious and visually appealing. It works well as a make-ahead dish that feeds a crowd with minimal fuss.
Ingredients
- 1 (16 oz) package frozen hash brown potatoes, thawed
- 2 cups cooked and shredded rotisserie chicken (about 1 large breast)
- 1 (10.5 oz) can cream of mushroom soup
- 1 cup sour cream
- 1 small onion, finely chopped
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 cup frozen mixed vegetables (peas, carrots, corn), thawed
- 1/2 cup sliced black olives (optional)
- 1/2 cup chopped green bell pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 2 tablespoons butter, melted
- 1/4 cup chopped fresh parsley (optional, for garnish)
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch casserole dish with butter or nonstick spray.
- In a large bowl, combine the thawed hash browns with melted butter, garlic powder, salt, and pepper. Mix well to coat evenly.
- Spread the hash brown mixture evenly in the bottom of the prepared casserole dish, pressing it down gently to form the first layer.
- In a separate bowl, mix together the cream of mushroom soup and sour cream until smooth. Spread half of this mixture over the hash brown layer.
- Sprinkle the chopped onion evenly over the soup layer, then add the cooked shredded chicken as the third layer.
- Scatter the thawed mixed vegetables and chopped green bell pepper evenly over the chicken layer.
- Spread the remaining soup and sour cream mixture over the vegetables, smoothing it out gently.
- Sprinkle the shredded cheddar cheese evenly on top, followed by the shredded mozzarella cheese for a melty, golden finish.
- If using, add sliced black olives as the final layer for a salty, tangy contrast.
- Cover the casserole loosely with aluminum foil and bake for 40 minutes. Remove the foil and bake an additional 15 minutes, or until the cheese is bubbly and browned.
- Remove from oven and let rest for 10 minutes before serving. Garnish with fresh parsley if desired.
Tips
- Substitutions: Use cream of chicken soup if you prefer a different flavor base. For a vegetarian version, omit the chicken and add an extra cup of mixed vegetables or cooked beans.
- Make Ahead: Assemble the casserole the night before, cover tightly, and refrigerate. Bake just before serving, adding 10-15 minutes to the baking time if baking from cold.
- Cheese Choices: Swap cheddar and mozzarella for Monterey Jack, pepper jack, or a Mexican blend for a different twist. Avoid pre-shredded cheese with anti-caking agents for better melting.
- Common Mistake: Don’t skip thawing the hash browns or vegetables thoroughly; excess moisture can make the casserole watery.
Serving Suggestions
This casserole pairs wonderfully with simple green salads dressed in vinaigrette, or roasted Brussels sprouts for a fresh, crisp contrast. For a heartier meal, serve alongside warm dinner rolls or garlic bread. A crisp white wine or light beer complements the creamy, cheesy layers nicely at holiday gatherings.
Variations
Customize the 7 layer casserole by changing the protein—try cooked ground beef or turkey instead of chicken. Add a layer of cooked bacon or ham for smoky flavor. Swap out mixed vegetables for seasonal favorites like roasted butternut squash or sautéed mushrooms. Spice it up by adding diced jalapeños or a dash of cayenne to the soup mixture. For a dairy-free version, use coconut or cashew-based sour cream and dairy-free cheese alternatives.
Storage and Reheating
Store leftover casserole in an airtight container in the refrigerator for up to 4 days. To reheat, place individual portions in a microwave-safe dish and heat on medium power for 2-3 minutes, or until warmed through. Alternatively, reheat in a preheated 350°F (175°C) oven covered with foil for about 20 minutes. Avoid freezing, as the texture of the potatoes and cream mixture can become grainy and watery upon thawing.
Frequently Asked Questions
Can I use fresh potatoes instead of frozen hash browns?
Yes, but you’ll need to peel and shred the potatoes, then squeeze out excess moisture before layering. This helps prevent a soggy casserole. Parboiling shredded potatoes for a few minutes before using can also improve texture.
Is it necessary to thaw the frozen vegetables before adding?
Thawing the vegetables helps prevent excess water from diluting the casserole, ensuring it bakes evenly and maintains a creamy texture. You can thaw by leaving them in the refrigerator overnight or running under cold water and draining thoroughly.
Can I make this casserole vegetarian or vegan?
To make it vegetarian, omit the chicken and increase the vegetable quantity or add beans for protein. For vegan, substitute dairy ingredients with plant-based alternatives like vegan cream soup, sour cream, and cheese. Keep in mind baking times may vary slightly.
How do I prevent the casserole from becoming watery?
Ensure all frozen ingredients are fully thawed and drained. Press the hash browns firmly into the pan to release moisture before layering. Avoid overmixing the creamy layers so they don’t become too loose. Baking covered initially helps retain moisture without drying out.
Can I double this recipe for a larger crowd?
Yes, double the ingredients and use a larger casserole dish or two 9×13-inch pans. Adjust baking time accordingly; larger or deeper casseroles may require an additional 10-15 minutes covered, then uncovered to brown the cheese.
What are good alternatives to cream of mushroom soup?
Try cream of chicken or cream of celery soup for a different flavor profile. You can also make a homemade white sauce (béchamel) with butter, flour, and milk for a fresher, less processed option. This will add a nice creamy texture without canned soup.
This hearty, easy-to-make 7 layer casserole is sure to become a holiday potluck favorite. With its balance of textures and flavors, it’s a comforting dish that pleases a variety of palates while being simple to prepare and transport.
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