By cooking.nytimes.com

Roasted Mushroom and Green Bean Casserole

Ingredients

10 servings

nonstick cooking spray

2.5 poundsharicots verts

or french green beans, trimmed and cut into 1-inch pieces

1 poundhen of the woods mushrooms

or cremini, oyster or other mushroom, cut into bite-size pieces

2shallots

large, halved lengthwise and thinly sliced into half-moons

4garlic cloves

minced

2 tablespoonsextra-virgin olive oil

kosher salt

black pepper

2 tablespoonsunsalted butter

2 tablespoonsall-purpose flour

1 quartheavy cream

or half-and-half

1 teaspooncajun seasoning

½ teaspoononion powder

½ teaspoongarlic powder

½ teaspoonchicken base concentrate

or 1/2 bouillon cube

¼ teaspoonground nutmeg

1 ¾ cupsshredded parmesan

or grated

1 cuppanko bread crumbs

2 cupsfried shallots

store-bought, or homemade, or onions

Instructions