8 Ingredients
  • 1 pound ground beef chuck (20% fat)
  • 1 teaspoon kosher salt
  • 1/4 teaspoon freshly ground black pepper
  • 8 slices rye bread
  • 2 tablespoons vegetable oil, divided
  • 1 large onion, sliced into 1/4" rounds
  • 8 thin slices cheddar, American, or Swiss cheese
  • 8 teaspoons mayonnaise, divided
Nutrition
487
24% daily value
4 servings
                                       
                                            low-​carb, low-​sugar
     

Fat

52% 34

Saturated

49% 10

Trans

- 0

Monounsaturated

- 13

Polyunsaturated

- 10

Carbs

4% 12

Carbs (net)

- 11

Fiber

6% 1

Sugars

- 2

Sugars, added

- 0

Protein

67% 34

Cholesterol

35% 104

Sodium

21% 506

Calcium

26% 256

Magnesium

10% 44

Potassium

11% 524

Iron

16% 3

Zinc

69% 8

Phosphorus

62% 433

Vitamin A

7% 64

Vitamin C

3% 3

Thiamin (B1)

16% 0

Riboflavin (B2)

26% 0

Niacin (B3)

38% 6

Vitamin B6

56% 1

Folate equivalent (total)

8% 33

Folate (food)

- 19

Folic acid

- 8

Vitamin B12

146% 4

Vitamin D

68% 10

Vitamin E

13% 2

Vitamin K

2% 3

Sugar alcohols

- 0

Water

- 131
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