I've made similar pies before -- my husband who frosts brownies and chooses the most frosting on any given cupcake or cinnamon rules declares that "pecan pie is too sweet". Just as well since we've moved to a low carb existence but I miss both it and fruitcake both.
Something fewer people are familiar with are walnut pies, yep pretty much like pecan but that's where I add the chocolate. My other version using walnuts has some orange peel and spices in it. People can be so strange... they might hesitate to take a slice of "pie" but if you make it in a sheet pan and cut it like cookie bars they'll snarf it down quite happily.