Skip to main content

Southwest Veggie and Rice Casserole

This vibrant Southwest veggie and rice bake is a satisfying vegetarian dish that brings bold, smoky flavours to the dinner table. Combining staple ingredients like black beans, sweetcorn, and juicy tomatoes with a hint of chilli heat, it offers a wonderful balance of textures and natural sweetness from sautéed peppers and courgettes. Finished with a melting layer of sharp cheddar, it is a comforting meal that provides a nutritious, homemade alternative to standard midweek bakes.

As a high-protein option, this casserole dish is perfect for those looking for a filling meat-free evening meal or a nutritious batch-cook recipe for the week ahead. The inclusion of taco-seasoned rice and plenty of fibre-rich vegetables makes it a wholesome choice for the whole family. Serve it simply with a dollop of soured cream or a fresh green salad for a complete and balanced dinner.

Video picks

Continue reading below

Ingredients for Southwest Veggie and Rice Casserole

  • 2 tablespoons vegetable oil

  • 1 medium onion, diced

  • 2 cloves garlic, minced

  • 1 medium jalapeño, seeded and diced

  • 1 medium pepper, seeded and diced

  • 1 medium courgette, quartered lengthwise and sliced

  • 1/2 tablespoons chilli powder

  • 3/4 teaspoons salt

  • 150g frozen corn kernels

  • 1 (425g) can diced tomatoes with chillies (see Chef's Tip, below)

  • 1 (425g) can black beans, drained and rinsed

  • 550g Taco Rice

  • 375g shredded sharp cheddar

  • 2 spring onions, thinly sliced

Preheat the oven to 191°C. Coat an 8-by-8-inch casserole dish with nonstick cooking spray.

In a large skillet, heat the vegetable oil over medium-low heat. Add the onion and garlic and cook for about 5 minutes, or until the onions have softened. Add the jalapeño and peppers, courgette, chilli powder, and salt to the skillet and stir to combine. Raise the heat to medium and continue to sauté until the vegetables are soft and no liquid remains on the bottom of the skillet, about 10 minutes.

In a large bowl, combine the corn kernels, diced tomatoes and chillies, and black beans. Add the sautéed vegetables, Taco Rice, and shredded cheddar cheese to the bowl and stir until evenly mixed.

Pour the rice and vegetable mixture into the prepared casserole dish and bake for 20 minutes.

Sprinkle the spring onions over the casserole and serve.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.