Whisk egg, water, seasoning, dip, and mustard together in a bowl.
Crumble in beef and sprinkle with breadcrumbs. Mix to combine. Wet hands to prevent sticking and form mixture into 6 patties.
Grill patties on the barbecue over medium-high heat with lid closed for 5 minutes. Flip and continue grilling for about 5 more minutes, or until an instant-read thermometer indicates a Food Safe internal temperature of 160° F (71° C).
Per serving: Calories 160, Fat 6 g (Saturated 2 g, Trans 0.5 g), Cholesterol 100 mg, Sodium 220 mg, Carbohydrate 3 g (Fiber 1 g, Sugars 0 g), Protein 24 g.