Squeeze about 1/2 the liquid out of the shredded zucchini with a towel (~ 3 tbsp). Keep some moisture to add tenderness to the lean turkey. Add drained zucchini to a large mixing bowl.
Add 3 tbsp BBQ sauce to mixing bowl; reserve remaining 3 tbsp to top the loaves. Add 1/4 cup cheese to the same mixing bowl; reserve 3 tbsp to top the loaves.
Preheat oven to 400F. Add all remaining ingredients (except for reserved sauce and cheese) to the large bowl. Mix together just until all ingredients are incorporated. Do not over mix.
Line a baking sheet with parchment paper, or grease it liberally with cooking spray (BBQ will carmelize as it cooks). Divide meat mixture into 4 equal portions and shape into loaves.
Divide reserved cheese between the top of the loaves and push lightly into the meat. Brush remaining 3 tbsp BBQ over the top.
Bake for 20-25 minutes, or until the loaves reach an internal temperature of 165F.
Let rest for 5 minutes to let the meat set, then serve