INGREDIENTS
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2 pounds lean ground beef or ground turkey
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1/2 cup chopped yellow or white onions (about 1 small-medium onion)
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1/2 to 3/4 cup chopped green bell pepper (about 1 large or 2 small-medium peppers)
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8 ounces white button or baby bella mushrooms, stemmed and finely minced (see note)
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1 teaspoon salt
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1/4 teaspoon black pepper
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1/4 cup all-purpose flour
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1 1/2 cups low-sodium beef broth
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2 tablespoons Worcestershire sauce
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; use a brand/recipe you love)
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Provolone cheese slices, for serving (or other cheese of choice)
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Buns, for serving (see note for my go-to homemade recipe/method)