The Jr. Jumbo Jack from Jack in the Box is a compact version of their iconic Jumbo Jack burger. It features a juicy beef patty, fresh lettuce, sliced tomatoes, pickles, and Jack’s signature mayo-ketchup blend, all nestled in a soft toasted bun. It’s a perfect choice when you’re craving classic burger flavors in a smaller portion.

Ingredients
- A smaller beef patty
- Lettuce, tomato, pickles, and onions
- Ketchup
- Mayonnaise
- All served on a smaller bun, often a brioche or similar soft roll.
Nutrition Facts
Calories | 400 |
Total Fat (g) | 25 |
Saturated Fat (g) | 6 |
Cholesterol (mg) | 30 |
Sodium (mg) | 700 |
Potassium (mg) | 210 |
Total Carbohydrate (g) | 31 |
Dietary Fiber (g) | 1 |
Sugar (g) | 5 |
Protein (g) | 14 |
Allergens
- Soy
- Milk
- Wheat
- Eggs
- Sesame