This Slow Cooker Vegetarian Chili Nachos is a great one to have up your sleeve when you want something easy but still a bit special. It’s a rich, hearty chili that’s perfect for nachos, thick enough to sit on the chips and easy to make ahead.
The flavour comes from a few simple steps. Sautéing the base, warming the spices, and then letting everything cook slowly until it thickens naturally. From there, you can serve it however you like: piled onto tortilla chips, scooped as a dip, or even as a simple chili bowl over rice.
Building flavour in a slow cooker chili
The slow cooker brings everything together, but it won’t build flavour on its own. That first step in the pan is what makes the difference.
Cooking the onion and bell pepper first softens them and brings out their sweetness. When you add the tomato paste and let it cook for a minute or two, it loses that raw edge and turns deeper and slightly caramelised, which really improves the flavour of the chili.
Warming the spices in the pan before they go into the slow cooker helps them bloom properly. It only takes 30 seconds, but it gives a much better flavour through the whole dish.
You can skip this step and add everything straight to the slow cooker if needed. It will still work, but the flavour will be lighter.
Getting the right texture for nachos (not too wet, not too thick)
You want a chili that holds its shape when spooned over the chips.
This recipe uses beans, tomatoes and salsa to create a thick, spoonable chili without needing any extra thickener.
The zucchini helps absorb excess liquid as it cooks, while softening into the chili so it blends in rather than standing out.
If your chili is a little thinner than you’d like near the end, remove the lid for the last 20–30 minutes to let it reduce, or mash a small spoonful of beans back into the mixture to thicken it. If you need more help, see my guide on how to thicken slow cooker sauce.
When to add vegetables in the slow cooker
Corn and zucchini are best added partway through cooking so they keep their colour and texture. If they go in too early, they can become very soft and add extra water to the chili.
Add them about 1½ hours before the end of cooking on LOW, or around 45 minutes on HIGH. You’re looking for the zucchini to be tender but still holding its shape.
Cutting the zucchini quite small helps it cook evenly and blend into the chili, rather than sitting in large pieces.
Serving this as nachos (and making it work every time)
Layering the nachos properly helps everything melt nicely and hold together.
Start with a layer of tortilla chips, then spoon over the hot chili, and finish with shredded cheese. This helps the cheese melt over the top without the chips going soggy underneath.
A quick bake in the oven really brings it all together. The cheese melts evenly and the edges of the chips crisp slightly, which you don’t get if you serve it straight from the slow cooker.
If you don’t feel like nachos, this chili works just as well served as a warm dip with chips on the side, or spooned over rice for an easy meal.
Thicker, sturdy tortilla chips hold up best here. The lighter ones tend to soften too quickly under the chili.
How to Make Slow Cooker Vegetarian Chili Nachos
Step 1. Build the flavour base by sautéing the onion, bell pepper, garlic and spices
Step 2. Transfer to the slow cooker and combine with remaining chili ingredients
Step 3. Cook until thick and full of flavour. Add the corn and zucchini partway through cooking
Step 4. Finish with lime juice and fresh cilantro
Step 6. Assemble nachos and bake until the cheese is melted
A few helpful notes before you start
Can I make this without sautéing first?
Yes, you can add everything straight to the slow cooker. It will still taste good, but the flavour will be a little lighter and less developed.
Can I make this ahead of time?
Absolutely. The flavours deepen as it sits, so it’s a great make-ahead option. Reheat gently before serving.
Can I freeze this chili?
Yes, the chili freezes well. Store it without the toppings and thaw before reheating.
Can I make this spicier?
Easily. The recipe is mild as written. That’s enough for most people, but it’s easy to add more heat once you know your preference. If you prefer more heat, increase the chili powder or add fresh chili or hot sauce to taste.
For more slow cooker help and variations, you might find these useful:
- Slow Cooker Cooking Times
- How to Thicken Slow Cooker Sauce
- Slow Cooker Pumpkin & Chickpea Curry
- Slow Cooker Red Lentil Curry
Slow Cooker Vegetarian Chili Nachos
Slow cooker vegetarian chili nachos made with beans, vegetables and spices. Thick, rich and perfect for easy nachos or a warm dip.
Ingredients
Chili
- 1 tablespoon olive oil
- 1 medium onion, finely diced
- 1 red bell pepper, diced small
- 3 cloves garlic, minced
- 2 tablespoons tomato paste
- 1½ teaspoons smoked paprika
- 1 teaspoon ground cumin
- ¼ teaspoon chili powder (mild — increase to ½–1 teaspoon to taste)
- ½ teaspoon dried oregano
- ¼ teaspoon cocoa powder
- ½ teaspoon brown sugar
- 1 (14 ounce) can chili beans
- 1 (14 ounce) can kidney beans, drained and rinsed
- 1 (14 ounce) can crushed tomatoes
- ⅓ cup salsa (80 ml)
- ¼ teaspoon salt (adjust to taste)
- ¼ teaspoon black pepper
- 1 teaspoon soy sauce or Worcestershire sauce
- 1 cup corn kernels (frozen or canned)
- 1 medium zucchini, diced very small
To finish
- Juice of ½–1 lime
- ¼ cup fresh cilantro, chopped
To serve
- Tortilla chips
- Shredded cheese
- Sour cream
- Extra lime wedges
- Fresh cilantro
Instructions
- Heat the olive oil in a large skillet over medium heat. Add the onion and bell pepper and cook for 5–7 minutes until softened.
- Stir in the garlic and tomato paste and cook for 1–2 minutes, letting the paste darken slightly and coat the vegetables.
- Add the smoked paprika, cumin, chili powder and oregano. Stir for about 30 seconds until fragrant.
- Transfer everything to the slow cooker. Add the cocoa powder, brown sugar, chili beans, kidney beans, crushed tomatoes, salsa, salt, pepper and soy sauce. Stir well to combine.
- Cover and cook on LOW for 4–5 hours or HIGH for 2½–3 hours, until the vegetables are tender and the chili is thick and rich.
- With about 1½ hours remaining, stir in the corn and zucchini. Continue cooking until the zucchini is tender.
- Stir through the lime juice and fresh cilantro just before serving.
- To serve as nachos
- Spread tortilla chips on a large ovenproof tray. Spoon the hot chili over the chips and top with shredded cheese.
- Bake at 400°F (200°C) until the cheese is melted and bubbling. Serve with sour cream, cilantro and lime wedges.
- Alternatively, serve as a warm dip with tortilla chips on the side.
- Store leftovers in an airtight container in the fridge for up to 3 days, or freeze for up to 3 months. Reheat gently until piping hot.
Nutrition Information:
Yield: 6 Serving Size: 1Amount Per Serving: Calories: 119Total Fat: 3gSaturated Fat: 0gUnsaturated Fat: 3gSodium: 138mgCarbohydrates: 20gFiber: 5gSugar: 6gProtein: 5g
This nutrition calculation for Just Slow Cooker Recipes has been automated, please use your discretion with the calculation and use your own if unsure.
This is a great one to keep on hand, whether you’re serving it as nachos, a dip, or a quick bowl of chili.
Thank you so much for visiting and taking the time to try this recipe. I hope you find plenty of slow cooker inspiration here on my blog.
If you’d like to see more of my latest recipes and kitchen adventures, be sure to follow along on Pinterest.
Happy cooking!
Anna
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