12 Ingredients
  • 2 ounces butter
  • 1 cup yellow onions, thinly sliced
  • 1 teaspoon white pepper
  • 2 teaspoons kosher salt, divided
  • 12 ounces (80/20) ground beef
  • 12 ounces ground pork
  • 1 teaspoon black pepper
  • 1/4 cup equal parts mayonnaise and mustard
  • 1 teaspoon lemon juice
  • 1 cup thinly shredded romaine hearts
  • 12 slices cheese of choice (Gruyere, baby Swiss, or Gloucester)
  • 12 petit buns (2 to 2 1/2 inches), toasted
Nutrition
451
23% daily value
12 servings
                                       
                                            low-​sugar
     

Fat

47% 30

Saturated

66% 13

Trans

- 1

Monounsaturated

- 10

Polyunsaturated

- 4

Carbs

8% 23

Carbs (net)

- 22

Fiber

5% 1

Sugars

- 3

Sugars, added

- 0

Protein

42% 21

Cholesterol

27% 81

Sodium

20% 479

Calcium

28% 278

Magnesium

7% 31

Potassium

6% 265

Iron

14% 2

Zinc

29% 3

Phosphorus

40% 280

Vitamin A

14% 125

Vitamin C

2% 2

Thiamin (B1)

42% 1

Riboflavin (B2)

25% 0

Niacin (B3)

28% 4

Vitamin B6

20% 0

Folate equivalent (total)

23% 90

Folate (food)

- 29

Folic acid

- 36

Vitamin B12

48% 1

Vitamin D

69% 10

Vitamin E

3% 0

Vitamin K

6% 7

Sugar alcohols

- 0

Water

- 75
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