Tex-Mex Green Bean Casserole

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  • Level: Easy
  • Total: 1 hr 10 min
  • Prep: 30 min
  • Cook: 40 min
  • Yield: 6 to 8 servings
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Kosher salt

2 pounds green beans, trimmed and halved

3 tablespoons unsalted butter

3 poblano chile peppers, seeded and cut into short strips 

1 large onion, chopped

2 cloves garlic, minced

2 tablespoons all-purpose flour

1 1/2 cups half-and-half

1 1/2 cups low-sodium chicken broth

Pinch of cayenne pepper

2 cups shredded pepper jack cheese (about 8 ounces)

4 cups tortilla chips

1 teaspoon ancho chile powder

1/2 cup crumbled Cotija cheese (about 2 ounces)


  1. Preheat the oven to 375 degrees F. Bring a large pot of salted water to a boil. Add the green beans and cook until crisp-tender, about 6 minutes. Drain, rinse under cold water and blot dry with paper towels.
  2. Melt the butter in a large pot or Dutch oven over medium heat. Add the poblanos and onion, season with salt and cook, stirring occasionally, until tender, about 7 minutes. Add the garlic and cook 1 minute. Add the flour and cook, stirring, until the vegetables are coated, about 1 minute.
  3. Whisk in the half-and-half, chicken broth, cayenne and 1/2 teaspoon salt. Increase the heat to medium high and bring to a boil, then reduce the heat to medium low and simmer, whisking occasionally, until thickened, about 5 minutes. Add the pepper jack and stir until melted, then add the green beans and stir to coat. Transfer to a 3-quart baking dish. (You can refrigerate the casserole, covered, for up to 4 hours.)
  4. Bake the casserole until bubbling, about 20 minutes. Meanwhile, pulse the tortilla chips with the chile powder in a food processor until coarsely ground. Sprinkle the Cotija cheese and ground tortilla chips over the casserole; bake until golden, about 5 more minutes.