Missing classic chili dogs while on a keto diet is a familiar challenge. You’ve been doing great, feeling fantastic, and then suddenly your mind flashes, “Remember those ballpark chili dogs?” It’s tough, but no worries. This Keto Chili Dog Casserole delivers that crave-worthy chili flavor, juicy hot dogs, and melty cheese goodness—without the carb-heavy bun.
Why This Recipe Is a Game-Changer
This recipe simply works. It captures the essence of what you miss, is quick enough for a weeknight, and reheats perfectly for a convenient next-day meal.
What truly matters is this: it gives you the full chili dog experience—savory, a hint of spice, cheesy, and comforting—while keeping carbs firmly in check. No complicated ingredient swaps or “barely edible” imposters.
Why This Recipe Fits Perfectly with Keto
Traditional chili dogs become problematic mainly because of the buns and sugary toppings. Our casserole keeps it keto-friendly by focusing on the best parts and avoiding carb-heavy extras:
- Keto-friendly hot dogs: Opt for hot dogs with minimal fillers and zero added sugars. (Beware, some brands sneak sugar in!)
- Bean-free chili: Beans add carbs, so a meat-forward chili with ground beef or turkey and spices brings flavor without the carb overload.
- Cheese plus keto condiments: Cheese offers comfort and richness. Mustard is usually safe, and sugar-free ketchup can be your secret weapon if you love it on chili dogs.
Choosing low-carb, low-sugar versions of familiar ingredients is what turns this casserole into a keto delight that tastes authentic.
Key Ingredients and Their Importance
1) Hot Dogs
Choose quality hot dogs for that classic chili dog taste. Beef varieties deliver the iconic flavor, though turkey is a fine alternative.
- Look for no added sugars
- Check for low carbs per serving
- Prefer simple ingredient lists to avoid fillers
2) Chili (Homemade or Store-Bought)
Homemade chili is simple and lets you manage carbs closely. Combine ground beef or turkey, tomato, spices, and skip the beans.
If using store-bought chili, scrutinize labels for hidden sugars or starches. Some canned options are disguised sugar bombs.
3) Cheese
Cheddar steals the show with its rich, melty goodness. Mozzarella adds stretchiness and mildness, while a Mexican blend brings a spicy kick.
Pro tip: shred your own cheese for the best melt. Pre-shredded cheese contains anti-caking agents that may impact texture.
4) Spices and Seasonings
The nostalgic flavor lives here:
- Chili powder, cumin, paprika create that classic chili taste
- Garlic and onion powders add depth
- Cayenne pepper is optional for heat—add cautiously as it’s easy to overdo
Flavor, Texture, and Satisfaction Compared to Classic Chili Dogs
Flavor
Bold and savory, this casserole nails the essence of a chili dog by focusing on meat, spice, cheese, and a touch of tangy mustard, without trying to replace the bun.
Texture
You’ll enjoy juicy hot dog bites, thick chili that clings perfectly, and melted cheese topped with slightly crispy edges.
It’s not a traditional chili dog, but it’s keto-friendly and incredibly delicious.
Satisfaction
Thanks to the fat in cheese and protein from meat, this meal keeps you full and satisfied—no late-night snacking needed.
Tips for the Best Results
- Bake at 350°F (175°C) for 25–30 minutes until hot and bubbly.
- For thicker casserole texture, use a thicker chili; runny chili makes it soupy.
- Always check hot dog labels for hidden sugars or carbs.
- Feel free to swap ground chicken or pork in the chili—this recipe is forgiving.
Meal Prep, Storage, and Reheating
This casserole is perfect for meal prep.
- Assemble and refrigerate covered up to 24 hours before baking.
- Store leftovers in an airtight container in the fridge for up to 4 days.
- Reheat options:
- Oven at 300°F (150°C) to maintain texture
- Microwave for convenience, though top won’t stay crispy
Serving Suggestions
- Weeknight dinners: Pair with a green salad or roasted broccoli to balance richness.
- Lunches: Reheats well and keeps you energized.
- Game days or gatherings: Cut into bite-sized squares for easy sharing.
Imagine This
After a long day, you’re exhausted and tempted to order out. But last night’s foresight paid off—this casserole is ready to pop in the oven. Thirty minutes later, you’re enjoying comforting, keto-friendly comfort food that hits the spot. Past you is a kitchen hero.
Conclusion
Keto Chili Dog Casserole brings back the best of classic chili dogs—savory chili, juicy hot dogs, and melty cheese—without the bun and added sugars. Cozy and simple, it’s perfect for leftovers and might just be better than the original since you avoid the post-carb slump.
Keto Chili Dog Casserole
Equipment
- large skillet
- 9×13-inch Baking Dish
- Cutting board
- Chef’s knife
- mixing spoon
- measuring cups
- measuring spoons
- Oven
Ingredients
For the bean-free keto chili
- 1 1/2 pounds ground beef (80/20)
- 2 tablespoons olive oil
- 1/4 cup finely chopped yellow onion
- 2 cloves garlic, minced
- 2 tablespoons chili powder
- 2 teaspoons ground cumin
- 1 teaspoon smoked paprika
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/4 teaspoon cayenne pepper optional, to taste
- 1 teaspoon fine sea salt plus more to taste
- 1/2 teaspoon ground black pepper
- 1 1/4 cups crushed tomatoes (no sugar added)
- 1/2 cup beef broth (low sodium)
For the hot dog layer
- 10 ounces keto-friendly beef hot dogs, sliced into 1/2 inch pieces about 6 to 8 standard hot dogs
- 2 tablespoons yellow mustard
- 2 tablespoons sugar-free ketchup check label for low carbs
For the cheesy topping
- 1 1/2 cups shredded sharp cheddar cheese
- 1 cup shredded mozzarella cheese
- 1/4 cup sour cream for serving, optional
- 2 tablespoons chopped green onions for garnish, optional
Instructions
- Preheat the oven to 350°F and lightly grease a 9×13 inch baking dish.
- Heat the olive oil in a large skillet over medium heat and add the ground beef, breaking it up with a spoon as it cooks.
- Cook the beef until browned and no longer pink, then drain off any excess grease if needed and return the skillet to the heat.
- Add the chopped onion and minced garlic to the skillet and cook, stirring, until the onion softens and becomes translucent.
- Stir in the chili powder, cumin, smoked paprika, garlic powder, onion powder, cayenne, salt, and black pepper until the meat is evenly coated with the spices.
- Pour in the crushed tomatoes and beef broth, stir to combine, and bring the mixture to a gentle simmer.
- Simmer the chili uncovered for about 10 minutes, stirring occasionally, until slightly thickened and flavorful, then taste and adjust seasoning if needed.
- In a large bowl, combine the sliced hot dogs with the yellow mustard and sugar-free ketchup, stirring until the hot dog pieces are evenly coated.
- Spread the coated hot dog pieces evenly in the prepared baking dish to create the bottom layer of the casserole.
- Spoon the thickened chili evenly over the hot dog layer, spreading it out to fully cover all of the hot dogs.
- Sprinkle the shredded cheddar cheese evenly over the chili, then sprinkle the mozzarella cheese on top of the cheddar for a melty, stretchy layer.
- Place the casserole in the preheated oven and bake for 25 to 30 minutes, until the cheese is melted, bubbly, and lightly golden around the edges.
- Remove the casserole from the oven and let it rest for about 5 minutes to set slightly before serving.
- Spoon the casserole into bowls, top with a dollop of sour cream and a sprinkle of chopped green onions if using, and serve hot.

