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John Wayne Casserole is hands-down my idea of the ultimate weeknight dinner. Hearty, bold, and layered with flavors that make every single scoop better than the last. Taco-seasoned ground beef sits on a soft biscuit base, topped with a creamy cheddar mixture that bakes into a deeply golden, bubbly crust. The kind of casserole that clears the dish every time.
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I make this for family dinners, game day spreads, and potlucks because it feeds a crowd out of one dish and it never lasts long. It is the kind of casserole that gets even better the next day as the flavors settle, making it one of my favorite meal prep dinners. Store leftovers covered in the fridge for up to 4 days or freeze for up to 3 months.
Ingredients You’ll Need
You’ll need all the ingredients shown in the photograph below.
How to Make John Wayne Casserole with Step-By-Step Instructions
Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.
Here’s everything you need to know to pull this John Wayne casserole recipe together perfectly the first time.
Preheat and Prep Your Baking Dish
Start by preheating your oven to 180°C. I always hang an oven thermometer inside my oven to make sure the temperature is accurate before anything goes in.
Lightly grease your baking dish or use nonstick cooking spray for an even easier release.
Mix and Press the Biscuit Base
Combine the biscuit baking mix and water in a bowl and stir until just combined into a soft dough. Press the Bisquick dough mixture evenly into the bottom of your casserole dish to form the crust layer.
You can swap the biscuit baking mix for Bisquick mix or even canned biscuits pressed flat if that’s what you have on hand.
Cook the Vegetables
Heat olive oil in a large skillet over medium heat. Add the diced onion and green bell pepper and cook until soft, about 5 to 8 minutes. A wooden spoon makes it easy to stir and scrape the bottom of the pan as the vegetables soften.
Brown the Beef and Season It
Add the ground beef to the skillet and cook until lightly browned, then drain excess fat before proceeding. I use my stainless steel grease container to strain and store the drippings cleanly instead of pouring them down the drain.
If you prefer a lighter option, lean ground beef or ground turkey works just as well as regular ground beef. Stir in the taco seasoning and the can of Rotel tomatoes, or swap in fresh tomatoes mixed with diced green chilies if you prefer, mixing everything together until well combined.
Layer the Beef Mixture
Spread the ground beef mixture evenly over the biscuit layer in your casserole dish. Take your time here so every slice gets an even layer of that seasoned ground beef filling.
Make the Creamy Cheese Topping
Mix the sour cream mixture in a separate bowl by combining the sour cream, mayonnaise, and shredded cheddar cheese until smooth. You can swap the sour cream for Greek yogurt or softened cream cheese for a slightly different flavor, and use pepper jack instead of cheddar if you want a little heat.
Spread the mixture evenly over the beef layer.
Bake Until Bubbly and Set
Place the casserole in the preheated oven and bake for 25 minutes or until the top is bubbly and set. Keep an eye on it toward the end so the topping gets that perfect golden finish. A ceramic baking dish holds heat evenly and transfers straight from the oven to the table without fuss.
Serve and Enjoy
Let the casserole rest for a few minutes before slicing and serving. It cuts cleanly and serves beautifully straight from the baking dish. Enjoy!
If you’re bringing John Wayne Casserole to a potluck or gathering, cover the dish tightly with foil right after baking and wrap it in a thick kitchen towel to keep it warm on the way. This insulated casserole carrier keeps the temperature steady and the dish secure during transport, so it arrives just as good as it left your kitchen.
John Wayne Casserole
Ingredients
- 2 cups biscuit baking mix
- 1 cup water
- 1 tablespoon olive oil
- 1 green pepper diced
- 1/2 onion diced
- 1 pound ground beef
- 2 tablespoons taco seasoning
- 1 can diced tomatoes with green chilies
- 1/2 cup sour cream
- 1/2 cup mayonnaise
- 1 cup cheddar cheese shredded
Instructions
- Preheat oven to 180°C. Lightly grease a baking dish.
- Mix biscuit baking mix and water until combined, then press into the bottom of the dish.2 cups biscuit baking mix, 1 cup water
- Heat olive oil in a skillet. Cook the green pepper and onion until soft, about 5–8 minutes.1 tablespoon olive oil, 1 green pepper, 1/2 onion
- Add ground beef, cook until browned, then stir in taco seasoning and diced tomatoes with green chilies.1 pound ground beef, 2 tablespoons taco seasoning, 1 can diced tomatoes with green chilies
- Spread the beef mixture over the biscuit layer.
- Mix sour cream, mayonnaise, and cheddar cheese, then spread over the top.1/2 cup sour cream, 1/2 cup mayonnaise, 1 cup cheddar cheese
- Bake for 25 minutes or until bubbly and set.
Notes
- Don’t overmix the biscuit base: Stir the biscuit mix and water until just combined and stop. Overmixing develops gluten and can make the crust tough instead of soft and pillowy.
- Press the crust evenly: Take an extra minute to press the biscuit mixture into an even layer across the bottom of the dish so every slice has the same thickness of crust underneath.
- Cook the vegetables until truly soft: Give the green pepper and onion the full 5 to 8 minutes in the skillet. Undercooking them leaves them crunchy in the finished casserole, which throws off the texture.
- Drain excess liquid from the beef: After browning the beef and adding the tomatoes with green chilies, if there’s a lot of liquid in the skillet, drain some off before spreading it over the crust so the biscuit layer doesn’t get soggy.
- Spread the topping all the way to the edges: The sour cream, mayo, and cheese mixture acts as a seal over the beef layer. Getting it all the way to the edges helps everything set up cleanly and gives you that even, golden top.
- Freeze in individual portions for easy reheating: Let the casserole cool completely, then slice and freeze portions individually on a baking sheet for 1 hour before transferring to freezer bags. It prevents sticking and means you can pull out exactly how much you need.
Nutrition
How to Store Leftovers
Let the casserole cool completely before storing. Transfer leftovers to an airtight container or cover the baking dish tightly with plastic wrap and refrigerate for up to 4 days. Reheat individual portions in the microwave, or pop the whole dish back into a 350°F oven for 10 to 15 minutes until warmed through.
For longer storage, freeze portions in an airtight freezer-safe glass container for up to 3 months. I love using my freezer-safe glass containers because they stack neatly and go straight from the freezer to the oven when you’re ready to reheat.
Thaw overnight in the fridge before reheating. The biscuit base holds up well after freezing, so the texture stays satisfying even after a few months.
What to Serve With John Wayne Casserole
It’s already packed with flavor, so it pairs best with simple sides that balance out the richness. A fresh green salad with a light vinaigrette cuts through the creamy topping nicely, and warm corn on the cob or a simple Mexican-style rice on the side rounds the meal out without competing with the bold Tex-Mex flavors. Top individual servings with sliced jalapeños or remaining cheddar cheese for extra flavor at the table.
For something a little more casual, serve it with tortilla chips and a side of salsa or guacamole for scooping. A cold glass of lemonade or an iced tea alongside keeps things refreshing, especially if you’re serving it at a summer gathering or a backyard dinner.
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