What Variety of Mushrooms Can I Use?
We use baby bellamushroomsfor the recipe, which are also called cremini mushrooms.
They are firm in texture with a mild, earthy flavor.

Photography / Brie Passano, Styling / Sammy Mila / Holly Raibikis
If you might’t find baby bella mushrooms, portobello mushrooms would be a good alternative.
Do You Bake This Casserole Covered or Uncovered?
Casseroles that are made with cooked ingredients are typically baked uncovered.
This allows moisture to be released to prevent the casserole from getting too soggy.
Baking the casserole uncovered also helps crisp and brown the surface.
Coat an 8-inch-square baking dish with cooking spray.
Heat 1/4 cup oil in a large skillet over medium heat.
Add onion and cook, stirring, until soft and starting to brown, about 3 minutes.
Add garlic and cook, stirring, for 1 minute.
Remove from heat and stir in sour cream, 1/4 cup Parmesan, 1/4 cup parsley and lemon juice.
Transfer to the prepared baking dish.
Sprinkle the topping evenly over the mushroom mixture.
Bake until bubbling and the breadcrumbs are lightly browned, 20 to 25 minutes.
Let stand at room temperature while the oven preheats.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.