Preheat the grill, setting the burners to medium high. Oil the grate.
In a bowl, combine the hoisin and sriracha. Set aside.
In another bowl, mix the meat and the dipping sauce. Working with your hands, form the meat into 4 patties. Place on an oiled plate. Lightly oil the buns and zucchinis.
Grill the patties for 3 minutes per side or until fully cooked. Grill the zucchinis for 2 minutes per side, then grill the buns until toasted.
Spread the mayonnaise on the buns, as desired. Place lettuce on each of the bottom buns, then add the patties. Glaze with the sauce. Cover with a layer of zucchini and more sauce. Sprinkle with the grated carrot and close with the top buns.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.