This tasty dish features fresh zucchini, hearty mushrooms, and sweet onions, all sautéed to perfection. It’s quick, colorful, and packed with flavor!
Honestly, it’s like a veggie party in a pan! 🍄🥒 I love serving it with rice or pasta, or just enjoying it straight from the skillet. Simple and scrumptious!
Key Ingredients & Substitutions
Zucchini: This vegetable adds a light and fresh flavor. If you can’t find zucchini, yellow squash or eggplant can work! They’ll give a slightly different taste but still keep the dish colorful.
Mushrooms: I prefer cremini mushrooms for their rich flavor. You can swap them with button mushrooms or even portobellos for a meatier texture. Just slice them thinly!
Onion: A large onion will add sweetness. Yellow or white onions are great choices, but if you love a bit of sharpness, use red onions instead. They look lovely in the dish too!
Garlic: Fresh garlic is a must for depth of flavor. If you’re in a pinch, garlic powder can be used, but fresh is always better for its aroma and taste!
Olive Oil or Butter: Both fat options give a nice richness. If you’re looking for a healthier option, try avocado oil! It has a similar flavor and is great for high-heat cooking.
How Do I Ensure My Vegetables Are Cooked Perfectly?
Cooking veggies right can be tricky! You want them tender but not mushy. Follow these simple steps for the best results:
- Start with medium-high heat to quickly sauté without steaming. This keeps them crispy!
- Add onions first—cook until they’re soft (about 3-4 minutes) before adding garlic. Garlic cooks fast, so add it last!
- Add mushrooms next as they take longer to cook. Once they turn brown and release moisture, it’s time to add zucchini.
- Zucchini cooks quickly. About 4-5 minutes is perfect for a lovely crisp. Check for doneness with a fork!
Remember to taste along the way and adjust seasoning for the best flavor!

How to Make Sauteed Zucchini, Mushrooms, and Onions
Ingredients You’ll Need:
- 2 medium zucchinis, sliced into half-moons
- 8 oz cremini or white mushrooms, sliced
- 1 large onion, thinly sliced
- 2 cloves garlic, minced
- 2 tablespoons olive oil or butter
- 1/4 teaspoon red pepper flakes (optional, for a bit of heat)
- Salt and freshly ground black pepper, to taste
- 1 tablespoon fresh parsley, chopped (optional, for garnish)
How Much Time Will You Need?
This delicious sauté takes about 10-15 minutes to prepare. With just a few minutes of chopping and about 10 minutes of cooking, you’ll have a vibrant veggie dish ready to enjoy!
Step-by-Step Instructions:
1. Heat the Skillet:
Start by placing your large skillet over medium-high heat. Add the olive oil or butter and let it warm up for a moment until it’s nice and hot, but not smoking.
2. Sauté the Onions:
Once the oil is ready, toss in your sliced onions. Sauté them for about 3-4 minutes. You want them to soften up and turn a lovely translucent color. This brings out their sweetness!
3. Add Garlic:
Next, stir in the minced garlic and give it a good mix. Cook for just 30 seconds until you can smell the fragrant garlic — be careful not to let it burn!
4. Cook the Mushrooms:
Time to add the sliced mushrooms. Season them with a pinch of salt and pepper. Cook for about 5-6 minutes, stirring occasionally, until they’re beautifully browned and have released their moisture. That’s when they’ll taste the best!
5. Add Zucchini and Red Pepper Flakes:
Now, add your sliced zucchini and the optional red pepper flakes for some heat. Continue to cook for another 4-5 minutes, stirring gently until the zucchini is tender but still has a little bit of crunch left. Taste along the way!
6. Final Seasoning:
Once everything is cooked to your liking, give it another taste. If it needs more flavor, sprinkle in additional salt and pepper.
7. Garnish & Serve:
Remove the skillet from the heat and sprinkle the fresh chopped parsley over your dish for a pop of color and freshness. It’s ready to serve!
Enjoy your colorful, flavorful vegetable medley. It’s perfect as a side dish or even on its own as a light main!
Can I Substitute Other Vegetables in This Recipe?
Absolutely! Feel free to add or substitute other vegetables like bell peppers, asparagus, or even spinach. Just keep in mind the cooking times may vary, especially for quicker-cooking veggies like spinach!
What If I Don’t Have Olive Oil or Butter?
No worries! You can use any cooking oil you have on hand, such as vegetable oil or avocado oil. If you’re looking for a dairy-free option, stick with plant-based butter or another oil for sautéing.
How to Store Leftovers?
Store any leftovers in an airtight container in the fridge for up to 3 days. To reheat, simply warm them in a skillet over low heat or in the microwave until heated through. Add a splash of olive oil or a bit of broth to keep them moist!
Can I Add Protein to This Dish?
Definitely! You could add cooked chicken, shrimp, or even tofu to make it a heartier meal. Just make sure to cook the protein separately and mix it in at the end to heat through.
