How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Portabella Mushroom Fajitas?

You need 10 ingredients. The key ingredients include: 1/2 large red onion, sliced, 1 yellow bell pepper, stemmed, seeded, and thinly sliced, 2 teaspoons olive oil, 2 portabella mushrooms, sliced into thin strips, and more.

Is Portabella Mushroom Fajitas suitable as salads?

Yes, Portabella Mushroom Fajitas falls under the Salads category and is a great choice for this type of meal.

How do I store leftover Portabella Mushroom Fajitas?

Keep refrigerated in an airtight container and enjoy within 1–2 days for the best freshness. Best served cold — no reheating needed.

Portabella Mushroom Fajitas Recipe

Name: Portabella Mushroom Fajitas
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/2 large red onion, sliced; 1 yellow bell pepper, stemmed, seeded, and thinly sliced; 2 teaspoons olive oil; 2 portabella mushrooms, sliced into thin strips; 2 tablespoons prepared fajita seasoning mix; 8 flour tortillas; 3 cups mixed salad greens; 2 large tomatoes, chopped; 1/4 cup nonfat sour cream; 1/3 cup prepared salsa

Try this homemade Portabella Mushroom Fajitas recipe the whole family will love. Made with red onion, yellow bell pepper, olive oil and portabella mushr…

This Portabella Mushroom Fajitas relies on simple, everyday ingredients such as large red onion, sliced, olive oil, flour tortillas and mixed salad greens. It comes together quickly and makes 4 servings, at about 812 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Salads

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Portabella Mushroom Fajitas

Tips for the best results

Variations & substitutions

My Personal Notes

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