Amazing baked sub sandwich packed with tender chicken slathered with homemade white BBQ sauce, and gooey melted Monterrey Jack cheese. It's a great combination of big flavors in a simple baked sandwich.
Whisk all ingredients for the white BBQ sauce in a small bowl and set aside until ready to use. (Refrigerate if not using right away.)
Season the chicken tenders with salt and pepper and cook them in a preheated cooking pan with some oil. Let them cook 3-4 minutes on one side and flip. Add sliced shallots and finish cooking the tender until just cooked through. (Chicken tenders usually take 6-8 minutes to cook.)
Take tenders out and let them cool until it can be handled. Chop chicken and place it in a mixing bowl.
Add cooked onions, shredded cheese and 1/2 cup of white BBQ sauce to the chicken. Mix to combine everything well.
Slice the sub across the top, in the middle, but not all the way through.
Divide the chicken mixture among the subs.
Sprinkle some more cheese over the top.
Place subs on a baking sheet and bake at 350℉ for about 15 minutes, until toasted, filling is heated through, and cheese is melted.
You can drizzle a little more white BBQ sauce on top and serve right away.