Heat 1 Tbsp of oil in a large skillet or wok over medium-high heat. Add the mushrooms and brown for 3-4 minutes. Add zucchini and season with salt and pepper to taste. Cook for 3-4 minutes or until tender. Push the veggies to the sides of the pan leaving the middle open. If you don't have a wok or large enough skillet, simply set the veggies aside while browning the meat. Add the ground pork and the spices. Break the meat into pieces and brown the meat, but don’t mix in the veggies yet. Once the meat is cooked through incorporate it with the veggies. Add Dijon mustard and heat through.