Sautéed Mushrooms and Onions

Ingredients

• 21 g (1½ tablespoons)unsalted butter
• 30 ml (2 tablespoons)olive oil
• 454 g (1 pound)cremini mushrooms, sliced
• 2.5 g (½ teaspoon), dividedsalt
• 1sweet onion, sliced
• 1lemon, zested and juiced
• 2 clovesgarlic, minced
• 60 ml (¼ cup)low-sodium vegetable broth
• 15 ml (1 tablespoon)Worcestershire sauce

Instructions

1. 1

   Heat the fats

   Set a large skillet over medium heat and add the butter and olive oil. When the butter has melted, add the mushrooms and ¼ teaspoon of the salt.

2. 2

   Cook the vegetables

   Cook the mushrooms for 10 minutes, stirring occasionally. Add the sliced onion and the remaining ¼ teaspoon of salt, then cook for 8 minutes.

3. 3

   Add the flavourings

   Add the lemon zest and juice, garlic, vegetable broth and Worcestershire sauce. Cook for another 2 to 4 minutes, or until most of the liquid has evaporated, then serve immediately.

What are sautéed mushrooms and onions?

This American-style skillet side combines browned mushrooms and softened onion, finished with garlic, Worcestershire sauce and lemon. It takes inspiration from the familiar pairing of sautéed vegetables served alongside or on top of hearty mains.

The recipe works because the mushrooms develop a savoury base while the lemon brings a fresh note at the end. The reduced broth and sauce coat the vegetables without leaving them swimming in liquid.

Nutrition and macros by portion

The nutrition label shows one serving as written: 165 calories, 4g protein, 15g carbs, 12g fat.

The onion and mushrooms provide most of the carbohydrates, while butter and olive oil account for much of the fat; the mushrooms contribute some protein. Serve the portion with a lean protein and a green vegetable or salad to make a fuller plate.

Choosing the ingredients

Cremini mushrooms: Their firm texture and savoury flavour suit a relatively long skillet cook. Slice them evenly so they cook at a similar rate.

Sweet onion: It softens and becomes mellow during its eight minutes in the pan, complementing the mushrooms without overwhelming them.

Lemon and Worcestershire: The lemon adds brightness, while Worcestershire deepens the savoury flavour. Low-sodium broth lets those additions come through without making the dish overly salty.

Getting the skillet right

Mushrooms first: Give them their full 10 minutes before adding the onion. Stir occasionally rather than constantly so they have time to cook in contact with the pan.

Liquid finish: Once the broth and seasonings are added, cook for 2 to 4 minutes. Look for most of the liquid to evaporate; the vegetables should be moist and coated, not watery.

Timing and doneness

The stated total time is 32 minutes, including preparation. The active cooking sequence is 10 minutes for the mushrooms, 8 minutes for the onion and a final 2 to 4 minutes for the liquid to reduce.

Use the visual cue as well as the clock: stop cooking when the mushrooms and onions have softened and most of the liquid is gone. Serve straight away for the best texture.

How to serve them

As a topping: Spoon the mixture over steak, chicken, burgers or sandwiches, or serve it alongside mashed potatoes. Its savoury flavour pairs especially well with simple, hearty mains.

For a balanced plate: Pair a portion with a protein-rich main and a green vegetable or salad. The mushrooms and onion bring flavour and texture without needing another rich sauce.

Make-ahead considerations

Freshly cooked: The vegetables are best served as soon as the pan sauce has reduced. If preparing them alongside a main, time the final lemon-and-broth stage so it finishes close to serving.

Pan space: Use a large skillet so the mushrooms can cook in a broad layer. If the pan is crowded, they may release moisture faster than it can evaporate.

Recipe notes & tips

• Slice the mushrooms and onion to a similar thickness for more even cooking.
• Measure out the salt in two portions before cooking so each addition is easy to manage.
• Stir the mushrooms occasionally during their 10-minute cook rather than keeping them in constant motion.
• Add the lemon, garlic and sauces together as directed so the garlic does not cook through the whole process.
• Keep cooking until most of the liquid has evaporated, checking within the stated 2-to-4-minute window.

Variations

• Add fresh herbs: Stir in chopped parsley just before serving for a fresh finish.
• Use another mushroom: Substitute sliced button mushrooms for the cremini mushrooms.
• Make it peppery: Add black pepper to taste with the final seasonings.
• Add chilli: Include a pinch of chilli flakes for gentle heat.
• Finish with green onion: Scatter sliced green onion over the dish just before serving.

Common mistakes to avoid

• Crowding the skillet: Too little pan space can leave the mushrooms stewing; use a large skillet.
• Stirring constantly: The mushrooms need contact with the pan to cook well; stir only occasionally.
• Adding the onion too soon: It can soften before the mushrooms have had their first 10 minutes; follow the recipe's sequence.
• Leaving excess liquid: The finished dish can turn watery; cook until most of the broth mixture has evaporated.
• Overcooking the garlic: Adding it at the beginning can make its flavour harsh; add it with the lemon and broth.

How to store

Refrigerate leftovers in an airtight container and use within 3 to 4 days. Reheat gently in a skillet until hot, allowing any released liquid to cook off.

Frequently asked questions