French Onion Instant Pot Mashed Potatoes

Instant Pot Mashed Potatoes are so delicious and easy to make, I had to include them in my new cookbook LOSE WEIGHT WITH YOUR INSTANT POT. This new Instant Pot cookbook is filled with all natural, metabolism boosting recipes for weight loss and weight maintenance, like these French Onion Instant Pot Mashed Potatoes.

Instant Pot Mashed potatoes with a twist! You don’t need butter and cream when you pack the recipe full of flavor. I cut calories with smart swaps like using Greek yogurt and almond milk and by reserving some of the potato water. Still want to add butter? Try using it on top instead, so that guests can indulge or abstain according to their preference.

French Onion Instant Pot Mashed Potatoes

Makes 10 servings | Serving size: 1/3 cup | Cook time: 45 minutes | Prep time: 15 minutes

Per serving: calories 158; fat 1 g; saturated fat 0 g; fiber 4 g; protein 4 g; carbohydrates 34 g; sugar 4 g

Instant Pot Mashed Potatoes

3 cups water

8 large yellow-fleshed potatoes

1 teaspoon garlic salt

1 teaspoon olive oil

3 yellow onions, very thinly sliced

1 teaspoon fresh thyme leaves

2 teaspoons Worcestershire sauce

1/2 cup unsweetened almond milk

1/4 cup 0% Greek yogurt

Kosher salt and freshly ground black pepper


  1. Pour the water into the Instant Pot. Peel the potatoes and cut them into 1-inch cubes, dropping them into the pot as you work. Add 1/2 teaspoon of the garlic salt. Cover and cook on high pressure for 10 minutes.


  1. Quick-release the pressure. Use a coffee mug to scoop out about 1 cup of the potato water. Drain the potatoes and transfer them to a large bowl.


  1. Set the pot to “sauté, medium heat” and add the olive oil, onions, and remaining 1/2 teaspoon garlic salt. Cook for 10 minutes, loosely covered but not sealed, stirring often to avoid burning. Add the thyme and Worcestershire sauce, mix to combine, and cook for 3 minutes.


  1. Add the almond milk and Greek yogurt and hit “cancel.” Add the potatoes and use a potato masher to mash until smooth, adding the reserved potato water 1/4 cup at a time to reach your desired consistency. Taste and add kosher salt and pepper as needed.

Check out my cookbook LOSE WEIGHT WITH YOUR INSTANT POT and more Lose Weight By eating cookbooks here.

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