Panko-Crusted Green Bean & Mushroom Casserole

Having always had a passion for collecting recipes, I recall one of my mothers cupboard drawers being full of recipe pamphlets. I loved sifting through them to find a recipe I could make. Anyone who’s ever checked out the kitchen section of an antique store can attest, recipe pamphlets were once big business. Long before we had access to the internet, home brands like General Mills & Cuisinart regularly released pocket-sized magazines full of tips, recipes and instructions on their products. Glossy covers depicted the recipes inside, the price was right and they were easy to use. There was no reason to buy an expensive big cookbook when it was all here in a pamphlet form.

The Campbell Soup Company had its own kitchen dedicated to pumping out such pamphlets. In 1955, Dorcas Reilly, the recipe supervisor at the time, devised and tested the infamous ‘green bean casserole’ recipe. Her inspiration for the dish was to create a quick and easy recipe around two things most folks always had on hand in the 1950’s. They were green beans and Campbell’s cream of mushroom soup. Reilly’s recipe became immediately popular. This simple combination consisted of green beans, cream of mushroom soup, soy sauce, milk and french fried onions. The idea that it could be made ahead and reheated, made it perfect for holiday dinners. Even in the face of North America’s obsession with fresh, locally grown and artisan foods, its popularity continues.

Like with most iconic dishes, time brings changes and healthier upgrades or just different personal tastes. I’ve never been a fan of those french fried onions, so I opted for a crispy panko topping. Along with fresh green beans and mushrooms I’m using a bechamel sauce. It worked out quite nice.

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Panko-Crusted Green Bean & Mushroom Casserole
  1. Preheat oven to 350 F. In a large skillet, fry bacon until almost crisp. Add onions, cook until soft & translucent, about 4-5 minutes. Add mushrooms & garlic; cook another 4-5 minutes until mushrooms are soft. Transfer the mixture to a bowl.
  2. Using the same skillet, melt butter & whisk in flour. Once combined, continue whisking for another 2 minutes until mixture has slightly deepened in color. Add half & half, Worcestershire sauce & chicken broth while constantly whisking to prevent lumps. Once slightly thickened, add grated cheese & whisk until melted & smooth.
  3. Add the mushroom/bacon mixture along with thyme, salt & pepper. Let the sauce simmer for a couple of minutes, then add the blanched green beans. Stir to combine.
  4. Pour the bean mixture into a 13 X 9-inch casserole dish. Combine panko crumbs with melted butter & sprinkle over casserole. Bake uncovered for 30 minutes.
Recipe Notes
  • Everything can be done in advance except for adding the panko crumbs. Add those just before baking. Let casserole sit for at least 30 minutes after removing it from the fridge before baking.