Equipment
Ingredients
Vegetables and Seasonings
- 450 g cremini mushrooms, trimmed and halved
- 200 g baby spinach, washed and thoroughly dried
- 4 garlic, peeled and thinly sliced
- 30 ml olive oil, liquid
- 4 g fine sea salt
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 101 kcal
- Protein
- 4 g
- Carbohydrates
- 6 g
- Fat
- 7 g
- Fiber
- 2 g
- Sugar
- 2 g
- Sodium
- 429 mg
- Saturated Fat
- 1 g
- Potassium
- 723 mg
- Calcium
- 57 mg
- Iron
- 1.7 mg
- Magnesium
- 23 mg
- Phosphorus
- 5 mg
- Zinc
- 0.0 mg
- Vitamin A
- 0 mcg
- Vitamin C
- 15 mg
- Water
- 2 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Position an oven rack in the middle position and preheat the oven to 200°C (400°F). Line a rimmed baking sheet with parchment paper.
On a cutting board, trim the dry bottom tips from the cremini mushroom stems and cut the mushrooms in half using a chef knife, then peel and slice the garlic cloves into thin slivers.
Transfer the halved cremini mushrooms and sliced garlic into a large mixing bowl, add the olive oil and fine sea salt, and toss until the mushrooms are glossy and evenly coated.
Arrange the seasoned cremini mushrooms and garlic on the prepared rimmed baking sheet in a single layer with cut sides facing down, then roast in the oven at 200°C (400°F) for 15 minutes.
Wearing oven mitts, remove the rimmed baking sheet from the oven and scatter the fresh baby spinach evenly across the hot cremini mushrooms.
Using tongs, gently toss the baby spinach into the hot mushrooms and garlic, coating the leaves in the warm pan juices until they begin to wilt from contact with the hot sheet pan.
Return the rimmed baking sheet to the oven at 200°C (400°F) and roast for 2 minutes until the baby spinach is fully wilted yet vivid emerald green.
Use tongs to transfer the hot roasted cremini mushrooms and wilted spinach onto a serving platter and serve immediately.
Chef's Notes
- Arranging halved cremini mushrooms cut-side down creates direct thermal conduction with the sheet pan, yielding rich Maillard browning without requiring high-heat stovetop searing.
- Baby spinach wilts remarkably quickly due to its tender cell walls; relying primarily on residual pan heat avoids overcooking and preserves bright chlorophyll pigment.
- Slice the garlic cloves into thin flat planks rather than mincing them, as finely minced garlic burns easily during a 15-minute high-heat roast.
- Be sure the spinach is completely dry before adding to the pan; excess surface water turns the roasting process into steaming and dilutes the flavorful pan juices.
Storage
Refrigerator: 4 days — Store in an airtight glass container at or below 4°C (40°F).
Reheating: Reheat in a preheated oven at 175°C (350°F) for 5 to 7 minutes or in a nonstick skillet over medium heat until steaming hot throughout, reaching a minimum internal temperature of 74°C (165°F).
Troubleshooting
Mushrooms release excessive moisture and turn spongy instead of browning
Cause: The baking sheet was overcrowded or the mushrooms were soaked in water rather than wiped clean
Fix: Carefully tilt the pan to pour off accumulated liquid, raise oven temperature to 220°C (425°F), and roast for 5 additional minutes
Prevention: Use a large half-sheet pan to allow space between pieces and wipe mushrooms with a dry or lightly damp towel
Baby spinach turns dark drab green and releases excess pool of water
Cause: Spinach was roasted too long in the oven or retained rinse water prior to cooking
Fix: Cannot be fixed, but draining pooled liquid from the serving platter and tossing with a splash of fresh olive oil will restore presentation
Prevention: Ensure spinach leaves are spun thoroughly dry before cooking and restrict final roasting time to exactly 2 minutes
Cultural Context
Cremini mushrooms, the immature brown variety of Agaricus bisporus, have long been staple fungi in Mediterranean farmhouse cooking thanks to their rich umami depth. Pairing roasted mushrooms with tender, fast-wilted greens draws directly from rustic Italian contorni traditions, where garden harvests are seasoned simply with quality olive oil, garlic, and sea salt. This recipe translates those timeless hearthside methods into a streamlined, hands-off sheet-pan preparation suited for modern weeknight dinners.
