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Home » Roasted Rainbow Fingerling Potatoes and Red Onion

Roasted Rainbow Fingerling Potatoes and Red Onion

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Author of Stella Coast

Grace

April 17, 2025
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Our Roasted Rainbow Fingerling Potatoes and Red Onion offers a colorful, nutrient-rich side dish. The simple recipe involves tossing, roasting, and pairing with various entrées for vibrant meals.

Roasted Rainbow Fingerling Potatoes and Red Oven. Vegetable Side Dish

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Table of contents

  • Why You’ll Love These Roasted Rainbow Fingerling Potatoes
  • Ingredients
  • How to Make Roasted Rainbow Fingerling Potatoes
  • What to Serve with Roasted Rainbow Fingerling Potatoes
  • Tools You’ll Need
  • Tips and Variations
  • Recipe Card

Why You’ll Love These Roasted Rainbow Fingerling Potatoes

You’re going to absolutely love this Roasted Rainbow Fingerling Potatoes and Red Onion recipe! Not only do these colorful veggies add a beautiful pop to your plate, but they also come packed with health benefits. Fingerling potatoes are rich in vitamins and minerals, while red onions add a zesty flavor and boost antioxidants. What’s not to love?

Tasty and Healthy: Rainbow potatoes and red onions are loaded with vitamins, fiber, and antioxidants while also tasting amazing!

Pop of Color: The more colors on my plate, the better! The vibrant hues make your meal visually stunning and appetizing.

Simple Recipe: Just toss, roast, and enjoy — it doesn’t get simpler than that!

Versatile Pairings: Perfect for any occasion and any dish whether it’s a weeknight dinner or a festive gathering! Pair with your favorite, chicken, beef, pork, fish, salad – add it to any meal!

READ NEXT: Looking for more easy and delicious side dish recipes? You’ll love our…

  • Easy Balsamic Glazed Roasted Carrots
  • Roasted Zucchini and Summer Squash
  • Sautéed Mushrooms in Garlic and Wine Sauce
  • Summer Balsamic Strawberry Caprese Salad!

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Roasted Rainbow Fingerling Potatoes Recipe

Ingredients

  • Fingerling potatoes
  • Olive oil
  • Garlic, minced
  • Red onion
  • Onion powder
  • Italian seasoning
  • Black pepper
  • Pinch of salt
  • Fresh basil, optional
  • Goat cheese, optional

How to Make Roasted Rainbow Fingerling Potatoes

Step 1: Preheat the oven to 400°F. Start preparing the potatoes and onions by first washing then slicing the fingerling potatoes in half length wise. For the larger potatoes, slice them 2-4 times length wise to form oval-shaped disks. Roughly chop the red onion into slices.

Step 2: In a large mixing bowl, add the sliced potatoes and red onion. Pour in the olive oil and add the minced garlic, onion powder, Italian seasoning, salt, and pepper. Mix well until everything is evenly coated.

Step 3: Spread the potatoes and onions out on a sheet pan lined with parchment paper. Bake at 400°F for 30-40 minutes. OPTIONAL: In the last 10-15 minutes of cooking, sprinkle goat cheese and basil over the potatoes and onions and pop back in the oven. Serve warm and enjoy!

roasted red fingerling potatoes recipe

What to Serve with Roasted Rainbow Fingerling Potatoes

Roasted Rainbow Fingerling Potatoes make a wonderful side dish to most any entree! Some of our favorite ways to pair this side dish is with…

  • Easy Rosemary Lemon Dill Salmon in the Oven
  • Herb and Parmesan Panko Crusted Cod with Lemon Beurre Blanc
  • Simple Lemon and Herb Chicken With Roasted Vegetables
  • Pan-Seared Steak with Garlic and Rosemary
  • Red Wine Beef Short Ribs in the Slow Cooker

Tools You’ll Need

Sheet Pan: To roast the potatoes in the oven

Mixing Bowl: To mix the potatoes, onion, and seasonings so everything is perfectly coated.

Roasted Potatoes Recipe. Potato Side Dish for Summer Recipes

Tips and Variations

Mix Up The Toppings: Instead of goat cheese, you can use parmesan cheese to top it off.

Herbs: These potatoes are so good roasted with some fresh rosemary or thyme! Fresh is best!

Potato Variations: This recipe will work just as good with other small potatoes such as mini yukon gold or small red potatoes.

Storage: Store in the refrigerator for up to 3 days.

Recipe Card

Roasted Rainbow Fingerling Potatoes
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Roasted Rainbow Fingerling Potatoes

Recipe by GraceCourse: Sides, PotatoesDifficulty: Easy
Servingsservings
Prep time

10

minutes
Cooking time

40

minutes
Total time

50

minutes

Ingredients

  • 1 lb fingerling potatoes

  • 1.5 tbsp olive oil

  • 2 cloves garlic, minced

  • 1 red onion

  • 1/2 tbsp onion powder

  • 1/2 Italian seasoning

  • 1 tsp black pepper

  • Pinch of salt

  • Fresh basil, optional

  • 1/3 cup goat cheese, optional

Directions

  • Preheat the oven to 400°F. Start preparing the potatoes and onions by first washing then slicing the fingerling potatoes in half length wise. For the larger potatoes, slice them 2-4 times length wise to form oval-shaped disks. Roughly chop the red onion into slices.
  • In a large mixing bowl, add the sliced potatoes and red onion. Pour in the olive oil and add the minced garlic, onion powder, Italian seasoning, salt, and pepper. Mix well until everything is evenly coated.
  • Spread the potatoes and onions out on a sheet pan lined with parchment paper. Bake at 400°F for 30-40 minutes. OPTIONAL: In the last 10-15 minutes of cooking, sprinkle goat cheese and basil over the potatoes and onions and pop back in the oven. Serve warm and enjoy!

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Meet Me


Hi, my name's Grace - the recipe developer, writer, and food photographer behind Stella Coast. I've lived in all three states along the west coast and am currently in the Pacific North West. Here, I create comforting, feel-good recipes made with whole, fresh ingredients as well as curated travel guides to the places I love most. Stella was my black lab beach companion, the best dog a girl could have, and the name sake of this blog. Thanks for stopping by, I'm so happy you're here!

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