Bring vibrant color and robust flavor to the table with this fast and easy recipe for a wholesome side dish.

I love ordering fajitas in a Mexican restaurant. Mostly because they usually bring it to the table on a hot platter that sizzles with aromatic delight. The chicken, beef, or shrimp in the dish is fine—but for me, the sautéed veggies are the star of the show! I figured there had to be some kind of secret technique behind the tender-yet-crunchy texture and sweet, smoky flavors that come alive on that platter.
Turns out, getting that delicious result at home is way easier than I thought! This fajita veggies mix recipe broke it down for me in simple, clear steps. I was nervous about overcooking the veggies and ending up with a pile of mush. But the timing in this recipe was perfect. My veggies came out of that skillet just as fragrant, firm, and flavorful as the restaurant dish! The onions soften and caramelize a little, bringing in a touch of sweetness. The peppers become fork-tender while retaining a hint of crunch, which keeps their earthy flavors fresh and vibrant. Mushrooms aren’t typically included in most fajita dishes, but they add a lovely depth to this recipe while bringing in a little protein.
This recipe has become my go-to whenever I need a quick and easy side dish. I’ll often adapt the seasonings to whatever entrée I’m making, and I’ll often add zucchini or other veggies that are languishing in my crisper. You’ll love how this dish makes you seem like a seasoned chef!

Tips for the best fajita veggies mix
Start with fresh veggies. For the best flavor and texture, look for blemish-free bell peppers, firm onions, and mushrooms with smooth caps. I like to use a mix of portobellos and cremini mushrooms for a variety of textures and flavors.
Next, try for uniform pieces when you’re slicing your veggies. When they’re all the same or nearly the same size, they’ll cook more evenly. Adjust the seasonings to your liking before you begin cooking. The quantities in the recipe are conservative and yield a nice, moderate flavor profile. If you prefer bolder flavors, bump them up a little. Or add a dash of cayenne pepper for an extra kick.
When it’s time to sauté, avoid overcrowding your skillet. That’ll trap moisture and cause your veggies to steam and get mushy. If you give them a little breathing room, they’ll get more direct contact with the hot skillet. That allows the Maillard reaction to work its magic and create a nice browning effect while the veggies caramelize a bit, resulting in evenly cooked and flavorful veggies.
Finally, keep the heat at medium-high, rather than high. This will keep you from burning the veggies while allowing them to attain a slight char as they cook to tender perfection.

How do I store leftovers?
Let your fajita veggies mix cool to room temp, then transfer leftovers to an airtight container. Store them in the fridge for up to 4 days. Freezing these veggies for up to 3 months is technically possible, but I recommend against it. They all have quite high water content, so the freeze-thaw process will leave them mushy and unappealing. If you won’t eat the leftover veggies on their own within your 4-day window, consider adding them to omelets or casseroles for extra flavor and nutrition.

Similar recipes to try
Hungry for more fast and easy veggie-rich sides? Check out this recipe for Air-Fryer Zucchini Chips, this Sautéed Broccoli Rabe Recipe, this recipe for Keto Stir-Fried Cauliflower Rice, and this tutorial on How To Sauté Onions to golden, tender perfection.


Fajita Veggies Mix
Ingredients
- 1 red onion
- 3 portobello mushrooms
- 1 red pepper
- 1 yellow pepper
- 1 green pepper
- 2 tablespoons olive oil
- 1 teaspoon ground cumin
- 1/2 teaspoon ground coriander
- 1/2 teaspoon smoked paprika
- Salt to taste
Instructions
- Peel and slice the red onion. Slice the mushrooms. Remove the stems and seeds from the peppers, then slice them.

- Place your prepped veggies in a large bowl. Drizzle the olive oil over them, then sprinkle in the cumin, coriander, paprika, and salt to your taste. Toss the vegetables until all of them are well coated with oil and spices.

- Transfer your veggies to a skillet over medium-high heat. Sauté the vegetables while stirring frequently until they're cooked yet still slightly crunchy, about 8-10 minutes.

- Serve immediately.


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