Vegetarian Stuffed Mushrooms with Toasted Garlic Panko

A quick 10-minute bake in a 350°F (180°C) oven keeps these vegetarian garlic stuffed mushrooms firm enough to pick up with your fingers. You cook the chopped stems and breadcrumbs in a skillet first. This extra step gives the filling a crunchy head start and prevents soggy centers.

Preparing the mushrooms

Keep your raw button mushrooms in their original paper bag until you start cooking. When you are ready, snap the stems away from the caps. You must do this carefully to leave the hollow tops in one piece.

You will chop the stems to use in the filling. Pile the empty tops on your workspace and toss them with olive oil until the outsides are coated. Place them on a baking sheet with the cup side facing up.

The toasted mixture

To keep the toasted mixture light and crunchy, this recipe requires panko (crispy bread flakes). Regular fine breadcrumbs pack together and make the inside heavy and dense. If your pantry is out of panko, try processing stale bread or heavily toasted plain sliced bread as a replacement.

You cook the chopped stems in a frying pan with olive oil and minced garlic until the vegetables soften. Next, you stir in the panko.

You cook everything together for another minute or two. The crumbs will take on a pale, toasted brown shade. Take the pan off the heat before adding the salt, black pepper, parsley, and thyme. Thyme pairs very well with mushrooms. You can substitute oregano or mixed herbs if you prefer. Do not use rosemary. Strong herbs like rosemary will overpower the mild mushroom taste.

Baking the mushrooms

Scoop the toasted mixture into the hollow tops. You do not need to be neat. Some crumbs will spill over the edges. Drizzle the stuffed mushrooms with a little more olive oil.

You bake the dish for exactly 10 minutes. You want to pull the mushrooms from the oven when they yield slightly to the touch. They should remain somewhat firm. If you bake stuffed vegetables until they are completely soft, they collapse and lose their shape.

Making the filling ahead of time

If you want to prepare the toasted mixture early, you can cook it up to two days before you plan to bake the dish. Let the pan of crumbs cool completely, then keep the mixture in a tightly sealed storage box. Leave your fresh button mushrooms untouched in their paper bag, and wait to snap out the stems and add the oil until right before they go into the oven.

Serving and leftovers

You can serve Vegetarian Stuffed Mushrooms with Toasted Garlic Panko warm right out of the oven. They also taste good at room temperature. They work well as a bite-sized appetizer or a light side dish.

Eat the mushrooms the same day you bake them. You should avoid reheating the cooked leftovers. The trapped moisture releases in the microwave or oven and makes the crispy topping soggy. You also cannot freeze the finished dish.