Sheet Pan Beef Fajitas

This is how dinner should be: Fast, easy, and full of flavour! You can have this tasty meal on the table in 30 minutes if needed, or you can marinate the steak ahead of time with some olive oil and the dried spices listed below for extra flavour.

For best results, use a three-quarter sized sheet pan for this recipe versus the more common 13” x 18” half sheet pan. This will allow extra room to spread the vegetables out into a single layer without overcrowding while roasting.

NOTE: Different countries, different terminology. In the UK a sheet pan is commonly known as a baking tray

Prep time: 10 minutes
Cook time: 15-20 minutes
Serves: 6


1½ lb. rump steak (flank steak), sliced into thin strips
1 lb. bag mini sweet peppers, cut in half lengthwise and seeded
1 large red onion, thinly sliced
2 T. extra virgin olive oil
1 T. ground cumin
2 t. chilli powder
½ t. cayenne pepper
1 t. red pepper flakes
Sea salt and black pepper, to taste
½ c. fresh coriander (cilantro) leaves, roughly chopped
1 large lime, sliced


1 large avocado, diced
Corn tortillas or large lettuce leaves

1. Preheat oven to 200°C, 400°F and line a large, rimmed baking sheet with parchment paper or a Silpat® baking mat. Set aside.

2. In a large mixing bowl, combine sliced steak, peppers, red onion, olive oil, cumin, chilli powder, cayenne, and red pepper flakes. Generously season with salt and pepper, to taste, and mix until everything is well coated.

3. Spread the steak and pepper mixture onto the prepared baking sheet and roast in pre-heated oven for 15-20 minutes, or until the steak reaches the desired level of doneness and the peppers are soft and slightly caramelised.

4. Remove sheet pan from oven and sprinkle with fresh coriander and a squeeze of fresh lime juice. Serve immediately with diced avocado, corn tortillas, or lettuce wraps for a low-carb option, if desired. Enjoy!

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