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Keto Sheet Pan Shrimp Fajitas

4.6 stars, average of 7 ratings

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You will love this Mexican inspired tray bake. It's the perfect keto dinner for busy weeknights and lazy Sundays.

This Shrimp Fajita Sheet Pan a simplified version of my Low-Carb Chicken Fajita Bowls but we are using shrimp instead of chicken and baking everything in one tray for simplicity and minimum clean up.

You can serve this easy keto dinner with sour cream, lime wedges, cilantro and some sliced avocado for healthy fats and extra potassium.

Craving tortillas? You can serve this meal with our Keto Tortillas or Nut-Free Keto Tortillas!

Want to swap chicken for shrimp, add avocado or serve this sheet pan dinner with some keto tortillas? You can make any of these customizations directly in our KetoDiet App by creating a new custom meal based on any of our 1.7K recipes.

Our app will automatically recalculate all macros and a new shipping list can be created so you can buy what you need to make your meal!

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Hands-on Overall

Serving size about 225 g/ 8 oz

Allergy information for Keto Sheet Pan Shrimp Fajitas

✔  Gluten free
✔  Dairy free
✔  Egg free
✔  Nut free
✔  Pork free
✔  Avocado free
✔  Coconut free
✔  Fish free
✔  Beef free

Nutritional values (per serving, about 225 g/ 8 oz)

Net carbs7.1 grams
Protein23.2 grams
Fat28.8 grams
Calories384 kcal
Calories from carbs 7%, protein 24%, fat 69%
Total carbs10.1 gramsFiber3 gramsSugars5.3 gramsSaturated fat4.4 gramsSodium1,456 mg(63% RDA)Magnesium51 mg(13% RDA)Potassium467 mg(23% EMR)

Ingredients (makes 4 servings)

  • 1/2 cup extra virgin olive oil (120 ml/ 4 fl oz)
  • 2 tbsp fresh lime juice (30 ml)
  • 1 tsp chile powder, or to taste (chipotle for hot, ancho for mild)
  • 1 tsp ground cumin
  • 2 cloves garlic, minced
  • 1 tsp sea salt
  • 1/2 tsp ground black pepper
  • 1/2 medium red onion, sliced (50 g/ 1.8 oz)
  • 1 medium green bell pepper (120 g/ 4.2 oz)
  • 1 medium red bell pepper (120 g/ 4.2 oz)
  • 2 medium yellow and/or orange bell peppers (340 g/ 12 oz)
  • 600 g raw shrimp/prawns, deveined (1.3 lb)
  • Optional: sour cream, lime wedges and fresh cilantro or parsley to serve


  1. To make the marinade, juice the lime and place in a small bowl together with the spices (chile powder, cumin, salt and pepper) and olive oil. Whisk to combine — the mixture will thicken.
  2. Peel and slice the onion and slice the bell peppers. Mince the garlic. You can use one green bell pepper plus three other bell peppers (red, yellow and/or orange).
  3. Place the peppers in a bowl and add the red onion and garlic. Pour over half of the marinade. Toss to combine. Keto Sheet Pan Shrimp Fajitas
  4. In another bowl combine the shrimp with the remaining marinade. Place in the fridge for at least 30 minutes or overnight. Keto Sheet Pan Shrimp Fajitas
  5. Remove the peppers from the fridge. Place in a tray together with the marinade and bake at 200 °C/ 400 °F (fan assisted), or 220 °C/ 425 °F (conventional) for 10 minutes, tossing and rotating the tray halfway to ensure even cooking. Keto Sheet Pan Shrimp Fajitas
  6. After 10 minutes, turn on the broiler, add the marinated shrimp and cook on high for another 5 to 8 minutes. (You will have some marinade left from the prawns. Do not pour it into the tray as it would make the meal too watery.)
  7. Remove from the oven and set aside to cool for 5 minutes before serving. Optionally, serve with lime wedges, cilantro (or parsley), sour cream and/or Keto Tortillas. Store in the fridge for up to 3 days. Keto Sheet Pan Shrimp Fajitas

Ingredient nutritional breakdown (per serving, about 225 g/ 8 oz)

Net carbsProteinFatCalories
Olive oil, extra virgin
0 g0 g27 g239 kcal
Lime juice, fresh
0.5 g0 g0 g2 kcal
Garlic, fresh
0.5 g0.1 g0 g2 kcal
Chile (chili) powder, spices (ancho, chipotle, Mexican chile powder)
0.1 g0.1 g0.1 g2 kcal
Cumin, ground
0.2 g0.1 g0.1 g2 kcal
Salt, sea salt
0 g0 g0 g0 kcal
Pepper, black, spices
0.1 g0 g0 g1 kcal
Onion, red, fresh
0.8 g0.2 g0 g5 kcal
Peppers, green bell, fresh
0.9 g0.3 g0.1 g6 kcal
Peppers, red bell, fresh
1.2 g0.3 g0.1 g9 kcal
Peppers, orange bell, fresh
1.2 g0.3 g0.1 g9 kcal
Peppers, yellow bell, fresh
1.2 g0.3 g0.1 g9 kcal
Prawns, shrimp (raw, peeled)
0.6 g21.6 g1.2 g99 kcal
Total per serving, about 225 g/ 8 oz
7.1 g23.2 g28.8 g384 kcal

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Martina Slajerova
Creator of

Martina Slajerova

I changed the way I ate in 2011, when I was diagnosed with Hashimoto’s, an autoimmune disease that affects the thyroid. I had no energy, and I found it more and more difficult to maintain a healthy weight.

That’s when I decided to quit sugar, grains, and processed foods, and to start following a whole-foods-based ketogenic approach to food.

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Comments (4)

What temperature do you set the oven?

Well spotted! See step 5. Once I add the shrimp I just broil it on high (240-250 C).

… but what about the temperature for the peppers and onions?

I fixed that part (see step 5) - it was previously missing.