Stuffed Portobello Mushrooms

Yes. Assemble the stuffed mushrooms completely, cover with plastic wrap, and refrigerate for up to 8 hours. Roast as instructed, adding 5 minutes to the cooking time since they'll start cold.

Yes. Freeze stuffed (but unbaked) mushrooms on a baking sheet for 2 hours until solid, then transfer to a freezer bag for up to 1 month. Bake from frozen at 400°F for 30–35 minutes until tender and golden.

Substitute finely chopped roasted red peppers, sun-dried tomatoes, spinach, mushroom pieces, or crumbled goat cheese into the breadcrumb mixture. Keep the ratio of wet ingredients (oil and aromatics) to dry (breadcrumbs) the same.

A simple green salad with lemon vinaigrette, roasted vegetables like asparagus or zucchini, or crusty bread are all excellent sides.

Cover and refrigerate for up to 3 days. Reheat in a 350°F oven, covered with foil, for 10–12 minutes until warmed through; or microwave an individual mushroom on 50% power for 1–2 minutes.

Mushrooms release moisture as they cook. This is normal and creates a light sauce, but if excess liquid pools, scoop it out with a spoon after cooking. Avoid overstufffing, which traps steam; also avoid covering the mushrooms during roasting, which increases moisture.