In medium bowl, mix well ground beef, onions, celery, garlic, red pepper, hot sauce, tomato paste, cumin, herbs and taco seasoning.
Fill half of the beef mixture in the hollowed squash.
Press firmly in squash.
Make a long cavity in the beef and fill with shredded cheese.
Top cheese with the rest of the beef.
Pressing well to seal in cheese.
Place a large sheet of aluminum foil under squash and pour about a 1 Tbsp of olive oil on the squash.
Wrap the squash with the aluminum foil.
Place squash on the barbeque and on medium heat, grill for 40 minutes.
Turn heat to low and continue cooking for 45-60 minutes.
I flipped my squash over for 10 minutes to allow the squash to caramelize on the top.
Slice and serve.
Enjoy.