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Sausage Green Bean Potato Casserole

Sausage Green Bean Potato Casserole layers caramelized chicken-apple sausage with tender green beans, baby gold potatoes, and mini carrots in a thyme-scented pan sauce. The rich, savory gravy balances subtle sweetness from the sausage, while a crown of crisp fried onions adds crunch and depth. It’s a cozy, crowd-pleasing bake ideal for weeknight dinners or a comforting weekend gathering.

  • Prep20 mins
  • Cook1 hr 20 mins
  • Serves8
  • DifficultyEasy
Sausage Green Bean Potato Casserole
  1. 1

    Preheat the oven to 350 degrees F (175 degrees C) and grease a 3-quart baking dish.

  2. 2

    Brown the sausage pieces in a nonstick skillet over medium heat for 3 to 5 minutes; transfer them to a large bowl.

  3. 3

    Using the same skillet, melt the butter over medium heat. Add the onions and cook, stirring, until soft, about 3 minutes. Stir in the garlic and cook for another 30 seconds. Stir in the thyme, then season with salt and pepper.

  4. 4

    Sprinkle the flour over the onions and garlic, and stir until the flour is absorbed, about 1 to 2 minutes. Stir in the chicken broth and half-and-half. Bring to a boil while stirring, then reduce to a simmer and cook, stirring, until the sauce thickens and coats the back of a spoon, 3 to 5 minutes. Remove the skillet from the heat.

  5. 5

    Add the green beans, potatoes, and carrots to the bowl with the sausage; add the sauce and stir to coat everything with the sauce. Transfer the mixture to the prepared baking dish. Cover with foil.

  6. 6

    Bake in the preheated oven for 45 minutes. Remove the foil, stir, and sprinkle the fried onions on top.

  7. 7

    Continue baking until the casserole is hot and bubbly and the onions have crisped slightly, about 20 minutes more. Serve warm.