Roasted Asparagus Onions and Mushrooms

Elevate your side dish game with this Roasted Asparagus, Onions, and Mushrooms recipe—a vibrant medley of tender asparagus, savory baby bella mushrooms, and sweet red onions roasted to perfection. This recipe combines simple ingredients like garlic, olive oil, and earthy herbs such as thyme and rosemary to infuse every bite with rich, aromatic flavors. With a quick prep time of just 15 minutes and a caramelized finish straight from the oven, this dish is as effortless as it is impressive. A final squeeze of fresh lemon juice adds a bright, zesty touch, making it the perfect pairing for any main course—from roasted chicken to hearty pasta. Gluten-free, vegan-friendly, and irresistibly delicious, it’s destined to become your go-to vegetable side dish for weeknights and special occasions alike.

Nutriscore Rating: 78/100

Prep Time:15 mins

Cook Time:25 mins

Total Time:40 mins

Servings: 4

Ingredients

• 1 pound asparagus
• 8 ounces baby bella mushrooms
• 1 large red onion
• 3 tablespoons olive oil
• 2 cloves garlic
• 1 teaspoon salt
• 0.5 teaspoon black pepper
• 0.5 teaspoon dried thyme
• 0.5 teaspoon dried rosemary
• 1 tablespoon lemon juice

Directions

Step 1

Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper or aluminum foil.

Step 2

Wash the asparagus and trim the tough ends. Cut the asparagus into approximately 2-inch pieces.

Step 3

Wipe the mushrooms clean with a damp paper towel and slice them into halves or quarters, depending on their size.

Step 4

Peel the red onion and slice it into thin wedges.

Step 5

Mince the garlic cloves and set aside.

Step 6

In a large mixing bowl, combine the asparagus, mushrooms, onions, and minced garlic.

Step 7

Drizzle the olive oil over the vegetables and toss to coat evenly.

Step 8

Sprinkle the salt, black pepper, dried thyme, and dried rosemary over the vegetables. Toss again to distribute the seasonings.

Step 9

Spread the seasoned vegetables in an even layer on the prepared baking sheet, ensuring they are not overcrowded to allow for proper roasting.

Step 10

Place the baking sheet in the preheated oven and roast for 20-25 minutes, stirring halfway through, until the vegetables are tender and slightly caramelized.

Step 11

Remove the vegetables from the oven and drizzle with fresh lemon juice before serving.

Step 12

Serve warm as a side dish with your favorite main course.

Nutrition Facts

Serving size	(901.2g)

Amount per serving	% Daily Value*
Calories	595.5

Total Fat 43.7g	0%
Saturated Fat 6.8g	0%
Polyunsaturated Fat 4.2g
Cholesterol 0mg	0%
Sodium 2391.2mg	0%
Total Carbohydrate 43.1g	0%
Dietary Fiber 15.1g	0%
Total Sugars 19.9g
Protein 18.0g	0%

Vitamin D 15.9IU	0%
Calcium 172.6mg	0%
Iron 12.1mg	0%
Potassium 2212.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 61.7%

Protein: 11.3%

Carbs: 27.0%