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 Mushroom And Onion Vegetarian Tacos?

You need 11 ingredients. The key ingredients include: Tacos:, 1 tablespoon vegetable oil, 1 medium red onion, sliced, 3 large fresh portabella mushrooms, sliced, cut in half, stems removed, and more.

Is Mushroom And Onion Vegetarian Tacos suitable as snacks & appetizers?

Yes, Mushroom And Onion Vegetarian Tacos falls under the Snacks & Appetizers category and is a great choice for this type of meal.

How do I store leftover Mushroom And Onion Vegetarian Tacos?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Mushroom And Onion Vegetarian Tacos Recipe

Name: Mushroom And Onion Vegetarian Tacos
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: Tacos:; 1 tablespoon vegetable oil; 1 medium red onion, sliced; 3 large fresh portabella mushrooms, sliced, cut in half, stems removed; 2 tablespoons Old El Paso(R) taco seasoning mix; 2 tablespoons water; 8 Old El Paso(R) flour tortillas for soft tacos & fajitas; Toppings, as desired:; 1 cup guacamole; 1/2 cup sour cream; 1/2 cup crumbled queso fresco cheese

Try this homemade Mushroom And Onion Vegetarian Tacos recipe the whole family will love. Made with vegetable oil, red onion, fresh portabella mushrooms …

This Mushroom And Onion Vegetarian Tacos relies on simple, everyday ingredients such as tacos:, vegetable oil, medium red onion, sliced and water. It comes together quickly and makes 4 servings, at about 900 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Snacks & Appetizers

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.

My Personal Notes

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Mushroom And Onion Vegetarian Tacos

Tips for the best results

Variations & substitutions

My Personal Notes

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