Baked sweet potatoes with steak fajita filling

Baked sweet potatoes with steak fajita filling

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(44 ratings)

Prep: 20 mins Cook: 50 mins


Serves 4

Food blogger Alessandra Peters created this gluten-free supper of baked sweet potato and spicy filling. It's super-easy and contains 4 of your 5-a-day

Nutrition and extra info

  • Gluten-free

Nutrition: per serving

  • kcal578
  • fat30g
  • saturates7g
  • carbs39g
  • sugars24g
  • fibre13g
  • protein32g
  • salt0.5g
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  • 4 sweet potatoes
    Sweet potatoes

    Sweet potato

    sweet po-tate-toe

    Sweet potatoes have a creamy texture and a sweet-spicy flavour that makes them ideal for savoury…

  • 2 tbsp olive oil, plus extra to rub on the potatoes
    olive oil

    Olive oil

    ol-iv oyl

    Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…

  • juice 1 lime



    The same shape, but smaller than…

  • 2 tsp chilli powder
  • 1 tsp garlic powder
  • 1 tsp ground cumin
  • 500g lean beef steak, cut into medium-sized strips



    Steak is essentially a boneless thick or thin slice of red meat, cut across the grain of a large…

  • 2 onions, thinly sliced



    Onions are endlessly versatile and an essential ingredient in countless recipes. Native to Asia…

  • a mixture of 4 orange, yellow and red peppers, thinly sliced
  • small handful coriander, chopped
  • 2 avocados, halved, stoned and peeled



    Although it's technically a fruit, the mild-flavoured avocado is used as a vegetable. Native…


  1. Heat oven to 220C/200C fan/gas 7. Wash the sweet potatoes, prick them with a fork all over, then rub with a little olive oil and season generously. Wrap each potato in tin foil and bake on a baking tray for 45-55 mins until soft.

  2. To make the marinade, put the lime juice, chilli powder, garlic powder, cumin, 1 tbsp olive oil and a generous pinch of seasoning in a bowl. Mix everything together, then pour half the marinade into a second bowl. Add the steak to one of the bowls and mix well. Add the onions and peppers to the other bowl and mix to ensure everything is evenly coated. Cover both bowls in cling film and chill in the fridge until needed.

  3. When the sweet potatoes have about 20 mins left to cook, heat the remaining 1 tbsp olive oil in a large frying pan over a medium heat. Add the onion and pepper mixture, cook for 12-15 mins, stirring often, until they go soft and start to glisten and brown, then tip onto a plate. Wipe the pan clean with some kitchen paper, add the steak and cook for 3-5 mins, stirring often. Add the onions and peppers back to the pan for a few mins before serving, then remove from the heat and stir through most of the coriander.

  4. Mash the avocado in a bowl with a fork. Add a good pinch of salt and the rest of the coriander.

  5. To serve, halve each sweet potato lengthways, mash the insides with a fork, then top with a spoonful of the steak fajita mixture and a dollop of mashed avocado. Enjoy!

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Comments, questions and tips

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22nd Jun, 2020
Loved this recipe, so easy to make! Delicious!
10th May, 2018
Super simple, delicious and health. Easily halved for 2. I used rump steak and it wasn't tough at all. Will definitely make this one again. YUM!
24th Jan, 2018
I would buy fillet steak next time as the lean beef was so chewy. Recipe was really nice though, made extra marinade. Cooked sweet potatoes in the oven for an hour with no foil. Will definitely make again.
18th Oct, 2017
Love this recipe so much!
19th Apr, 2017
So easy, so tasty, and so healthy! This has become a firm favourite.
21st Mar, 2017
Delicious, will be making this again.
31st Jan, 2017
These were really tasty and easily done. Would work well with jacket potatoes as well.
31st Jan, 2017
Excellent mid week supper with no faff and lots of healthy veg. Will be making this again.
Sophie Byrne's picture
Sophie Byrne
6th Jan, 2019
Wha do you mean when you say add a generous pinch of seasoning in the bowl? What seasoning??
8th Nov, 2018
Will it be ok with lemon instead of lime?
goodfoodteam's picture
14th Nov, 2018
Thanks for your question. We think lime works best in this combination to give typical Mexican flavours.
23rd Aug, 2018
Can I marinate in the morning and leave in the fridge all day?
goodfoodteam's picture
27th Aug, 2018
Thanks for your question - yes you can. Generally meat can handle and benefits from longer marinating times, whereas fish does not. Hope this helps in future.
Dan Norris's picture
Dan Norris
20th Jun, 2018
Might be a silly question, but roughly how wide is a medium sized strip
goodfoodteam's picture
20th Jun, 2018
Thanks for your question, roughly 2cm will work well.
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