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Sauteed peppers and onions are colorful and full of sweet caramelized flavor! Eat as a healthy side dish or throw on sandwiches or tacos.

Sauteed peppers and onions
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Looking for a healthy and easy side dish? These sauteed peppers and onions are a rainbow of tender, caramelized flavor! Oddly enough, this revelation is a new find over here. We’ve made the requisite fajita veggies, and thrown those peppers and onions on the grill. But simply sauteeing them up in a pan seemed too simple…until we tasted them. The sweet flavor and tender texture are truly irresistible! Even better: they’re full of nutrients and jam packed with Vitamin C. Eat them as a side or throw them in sandwiches, on pizza, or in tacos: you name it! Game changer.

Ingredients for sauteed peppers and onions

This sauteed peppers and onions recipe is perfect for when you have lots of bell peppers on hand. Ever bought a pack of those multi-colored peppers and then forget about them in the fridge? Here’s how to use them up. The ingredients you’ll need are:

  • 3 bell peppers: we used red, yellow and green
  • 1 white onion
  • 1 red onion
  • Olive oil
  • Salt
  • Dried oregano

Seasoning with just salt and oregano sounds overly simple, but it really allows the caramelized flavor of the peppers and onions to shine.

Also try: Ultimate Sauteed Vegetables, which adds broccoli and carrots!

Bell peppers

How to sauté peppers and onions: some tips

Sautéing is one of the fastest methods to cook vegetables! This method for cooking browns the outside of the food, helping complex flavors to develop (called the Maillard reaction, if you want to get technical!). The word saute means “jump” in French, meaning you need to keep the food moving by stirring or flipping the pan. Here’s what to know about how to saute peppers and onions:

  • Thinly slice the veggies. The thinner the slices, the faster it will cook.
  • Add the fat. You can use olive oil or butter for sautéing. Butter has a richer, more savory flavor.
  • Cook on medium high heat and stir occasionally. Watch that the heat is not too high.
  • Cook until crisp tender, or very tender: you choose! You’ll need about 10 to 12 minutes for crisp tender, and about 15 for very tender. The texture depends on your personal preferences and how you plan to serve your peppers.

Want another variation? Try these delicious Roasted Bell Peppers or Roasted Peppers and Onions.

How to saute peppers and onions

Seasoning variations!

Want to change up the seasonings for these sauteed peppers and onions? There are lots of other ideas for seasoning blends or spices to add. Here are some ideas:

Ways to serve sauteed peppers and onions

So, you’ve got the beautiful rainbow pan of sauteed peppers and onions! How to use them to complete a healthy dinner? There’s a myriad of ideas; here are some of our favorites:

Sauteed peppers and onions

Bell pepper nutrition

One of the reasons Alex and I eat so many bell peppers: they’re loaded with nutrients and literally packed with Vitamin C. In fact, eating 1 serving of this sauteed peppers and onions recipe provides 126% of daily Vitamin C, since it uses 3 bell peppers. How’s that for healthy side dish? Here are the highlights of this super vegetable:

  • Peppers are loaded with Vitamin C. A medium red bell pepper provides a whopping 169% of your daily vitamin C! (Source)
  • Peppers may improve eye health and prevent against anemia. Some studies indicate peppers could cut the risk of macular degeneration and low iron (Source).

This sauteed pepper and onion recipe is…

Vegetarian, vegan, plant-based, dairy-free and gluten-free.

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Sauteed peppers and onions

Quick Sauteed Peppers and Onions

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 2 reviews

  • Author: Sonja Overhiser
  • Prep Time: 10 minutes
  • Cook Time: 15 minutes
  • Total Time: 25 minutes
  • Yield: 4 1x


Sauteed peppers and onions are colorful and full of sweet caramelized flavor! Eat them as a healthy side dish or throw them on sandwiches or tacos.


  • 3 multi-colored bell peppers
  • 1 medium yellow onion
  • 1 medium red onion
  • 2 tablespoons olive oil, divided
  • 1 teaspoon dried oregano
  • ½ teaspoon kosher salt
  • Fresh ground pepper


  1. Thinly slice the peppers. Thinly slice the onions. Toss them in a bowl with 1 tablespoon olive oil, oregano, salt and pepper.
  2. In large skillet, heat the remaining 1 tablespoon olive oil over medium high heat. Cook the peppers and onions together until tender and lightly charred, about 10 to 12 minutes for crisp tender or about 15 minutes for tender, stirring occasionally. Taste and add additional salt to taste. Serve immediately.
  • Category: Side Dish
  • Method: Sauteed
  • Cuisine: Vegetarian
  • Diet: Vegan

About the authors

Sonja & Alex

Hi, we’re Alex and Sonja Overhiser, married cookbook authors, food bloggers, and recipe developers. We founded A Couple Cooks to share fresh, seasonal recipes for memorable kitchen moments! Our recipes are made by two real people and work every time.

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  1. wendy says:

    hi–need help with your instructions. you say how to add and cook the peppers but nothing about the onions. are those added first or with the peppers or after the
    peppers? do they need the same time as the peppers. thanks!

    1. Alex Overhiser says:

      They should go together. Sorry about the typo!

  2. Mary says:

    Can you saute Italian vegetables?

    1. Alex Overhiser says:


  3. Ludy says:

    Multicolored sautéed bell peppers was a success ! My husband and my son loved it ! Thanks for that recipe

  4. Carol Fucci says:

    You need to try sausage and peppers on an italian (semolina) hoagie roll. We like spicy italian sausage but there is also a mild or sweet sausage. Delicious!!

  5. John Niles says:

    I had a food trailer and used to sell sausage and pepper sandwiches. People loved them. I used to saute peppers and onions in oil and place on sub rolls with Italian

    After a few hours the peppers and onion mix always became so bitter it was disgusting. I have never been able to find anyone who could explain what causes
    this. ANY IDEAS?

    1. Alex Overhiser says:

      I’ve never noticed this! Now I kind of want to try it and see what happens.

    2. Maureen says:

      Eliminate green pepper