Many people will never like venison because of prejudice. I wouldn't do it to a backstrap steak for myself, but for someone with issues try overnight marinade in italian dressing and grill to medium rare. For me, it gets the same treatment as sirloin.
As for the ground, if it is processed correctly it won't have any gamey flavor. Typical ground beef is a little gamey, but venison shouldn't be. I don't add beef fat because it can make the ground gamey. You'll just have to cook and drain the fat back out anyway. Pointless.
Worcestershire + Pickapeppa + Sriracha will cover gamey. My wife bought some grass fed beef. Yuck. The mix made it edible at least. If you don't like spicy heat, cook it until the red pepper oil degrades.
As for the ground, if it is processed correctly it won't have any gamey flavor. Typical ground beef is a little gamey, but venison shouldn't be. I don't add beef fat because it can make the ground gamey. You'll just have to cook and drain the fat back out anyway. Pointless.
Worcestershire + Pickapeppa + Sriracha will cover gamey. My wife bought some grass fed beef. Yuck. The mix made it edible at least. If you don't like spicy heat, cook it until the red pepper oil degrades.