Air Fryer Veggie Sausage Casserole Recipe
Introduction
This air fryer veggie sausage casserole is a hearty and flavorful dish that’s perfect for a quick weeknight meal. Packed with vegetarian sausages, beans, and roasted peppers, it comes together easily and cooks beautifully in the air fryer.

Ingredients
- 4-6 vegetarian sausages
- 1 red onion, chopped
- 1 tbsp vegetable or olive oil
- 400g can chopped tomatoes
- 3 roasted red peppers from a jar, sliced
- 400g can borlotti or cannellini beans
- 1 tsp red wine vinegar
- Dash Worcestershire sauce (or vegetarian alternative)
- 1 tsp mixed dried herbs
- Salt and pepper, to taste
Instructions
- Step 1: Preheat the air fryer to 180°C (356°F). Place the vegetarian sausages in the air fryer basket and cook for 5 minutes.
- Step 2: Toss the chopped red onion in the oil, then add it to the air fryer with the sausages and cook for another 5 minutes.
- Step 3: In a heatproof dish or directly in the air fryer drawer (if your basket base can be removed), combine the sausages, onions, chopped tomatoes, sliced roasted peppers, beans, red wine vinegar, Worcestershire sauce, and dried herbs. Season with salt and pepper.
- Step 4: Cook in the air fryer for 20 minutes until the sausages are fully cooked and the sauce has thickened slightly.
- Step 5: Serve the casserole with a fresh grinding of black pepper and enjoy warm.
Tips & Variations
- For extra flavor, add a chopped garlic clove along with the onion before cooking.
- Try different beans like kidney beans or chickpeas based on your preference.
- If you prefer a spicier dish, add a pinch of chili flakes or a splash of hot sauce.
- Serve with crusty bread or over rice for a more filling meal.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or in a saucepan on the stove until warmed through. The casserole can also be frozen for up to 1 month; thaw overnight in the fridge before reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen vegetarian sausages for this recipe?
Yes, you can use frozen vegetarian sausages; just add a few extra minutes to the initial cooking time to ensure they’re heated through properly.
Is this recipe suitable for vegan diets?
It can be made vegan by choosing vegan-friendly sausages and using a Worcestershire sauce without anchovies or a suitable vegetarian alternative.
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Air Fryer Veggie Sausage Casserole Recipe
- Total Time: 40 minutes
- Yield: 4 servings 1x
- Diet: Vegetarian
Description
This hearty air fryer veggie sausage casserole combines flavorful vegetarian sausages, aromatic onions, roasted red peppers, and creamy beans in a rich tomato sauce. Cooked entirely in the air fryer, this easy meal offers a wholesome, satisfying dish perfect for a quick weeknight dinner.
Ingredients
Sausage and Vegetables
- 4–6 vegetarian sausages
- 1 red onion, chopped
- 1 tbsp vegetable or olive oil
Sauce and Beans
- 400g can chopped tomatoes
- 3 roasted red peppers from a jar, sliced
- 400g can borlotti or cannellini beans, drained and rinsed
- 1 tsp red wine vinegar
- Dash Worcestershire sauce (or vegetarian alternative)
- 1 tsp mixed dried herbs
- Salt and freshly ground black pepper, to taste
Instructions
- Preheat the air fryer: Set the air fryer to 180°C (356°F) to prepare for cooking the sausages and onion.
- Cook sausages: Place the vegetarian sausages in the air fryer basket and cook for 5 minutes to start browning and cooking through.
- Prepare onion: Toss the chopped red onion in the vegetable or olive oil until evenly coated.
- Add onion to air fryer: Add the coated onion to the air fryer basket with the sausages, and cook for an additional 5 minutes, allowing the onions to soften and the sausages to cook further.
- Combine casserole ingredients: In a heatproof dish suitable for your air fryer, or directly in the air fryer drawer (if your model allows), combine the browned sausages, cooked onions, chopped tomatoes, sliced roasted red peppers, drained beans, red wine vinegar, Worcestershire sauce or vegetarian alternative, mixed dried herbs, salt, and pepper.
- Cook casserole: Place the dish or drawer back in the air fryer and cook for 20 minutes at 180°C. This will cook the sausages through completely and allow the sauce to thicken slightly.
- Serve: Remove from the air fryer, season with freshly ground black pepper, and serve hot for a nourishing, flavorful meal.
Notes
- Use your preferred vegetarian sausages; flavors will vary slightly based on brand.
- If your air fryer does not have a removable drawer or heatproof dish, consider using an oven-safe dish that fits inside the fryer basket.
- Adjust seasoning to taste toward the end of cooking for best flavor.
- This dish pairs well with crusty bread or a simple green salad.
- For a gluten-free version, confirm that the Worcestershire sauce and sausages are gluten-free.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Air Frying
- Cuisine: Vegetarian British
Keywords: air fryer, veggie sausage, casserole, vegetarian, quick dinner, easy recipe, beans, tomato sauce

