2. Salt and pepper the mushroom caps (reserve the stems). Drizzle with Worcestershire sauce. Spray with non-stick cooking spray or drizzle with a little olive oil. Bake uncovered for 25 minutes, then remove from oven.
3. Combine ground meat, spices, bread crumbs, egg, and minced mushroom stems. Form into small patties the same size as the mushroom caps. Grill burgers indoors using a grill pan, on an outdoor grill, or bake uncovered in oven for 15 minutes per side.
Variations:
Ground veal can be used in place of (or in combination with) ground meat.
To Assemble the Sliders
1. Spread barbecue sauce on the insides of two mushroom caps.
2. Layer burger on top of one mushroom cap and top with basil leaf, slice of tomato, and another mushroom cap. Top with a sprig of rosemary. Continue until all sliders are assembled.
question: mini mushroom sliders Can this be made in advance and frozen?
I think that the mushrooms would get watery. Prepare the hamburgers and freeze to save time. But put together day of.