Place the potatoes in a large pan with salted water. Boil for 22 minutes until tender.
Place another pan over medium heat and add the ground beef breaking up as it begins to cook.
Add salt, ground pepper, and chili flakes and combine to season the meat.
Add the carrot, onion, and celery into the pan with the beef. Stir to combine.
Add Sriracha sauce and red wine. Stir to combine.
Cook for 10 minutes covered
Carefully remove the lid and stir in the powdered gravy. Cook for a further 5 minutes until thickened.
In a large casserole dish place all of the cooked ground beef mixture. Smooth it evenly cross the dish.
Drain the potatoes and add butter to them. Mash until smooth.
Carefully spoon the mashed potato over the beef and smooth.
Sprinkle the cheddar cheese over the mashed potato topping and add some jalapenos for that extra kick.
Heat under a broiler/grill for 5 minutes until the cheese turns golden.