9 Ingredients
  • 3 1/2 tablespoons unsalted butter
  • 1 large onion, thinly sliced
  • Kosher salt
  • 1 1/2 cups low-sodium beef broth
  • 1/4 teaspoon freshly grated nutmeg
  • 1 tablespoon horseradish, plus more to taste
  • 8 ounces gruyere cheese, thinly sliced
  • 3/4 pound thinly sliced roast beef
  • 4 hoagie rolls, split
Nutrition
626
31% daily value
4 servings
                                       
                                            low-​carb, low-​sugar
     

Fat

62% 41

Saturated

108% 22

Trans

- 0

Monounsaturated

- 14

Polyunsaturated

- 2

Carbs

8% 24

Carbs (net)

- 22

Fiber

8% 2

Sugars

- 3

Sugars, added

- 0

Protein

80% 40

Cholesterol

51% 153

Sodium

36% 865

Calcium

64% 643

Magnesium

15% 58

Potassium

17% 594

Iron

17% 3

Zinc

40% 6

Phosphorus

84% 586

Vitamin A

27% 239

Vitamin C

6% 4

Thiamin (B1)

23% 0

Riboflavin (B2)

29% 0

Niacin (B3)

40% 8

Vitamin B6

34% 1

Folate equivalent (total)

23% 91

Folate (food)

- 39

Folic acid

- 30

Vitamin B12

40% 2

Vitamin D

0% 1

Vitamin E

4% 1

Vitamin K

6% 5
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