For the Pork:
Combine pork, garlic, onion powder, sage, thyme and oil in a large bowl and season with salt and pepper. Cover and refrigerate for at least 30 minutes to allow the flavors to meld. Mixture can be prepared 8 hours in advance and refrigerated.
Form the sausage mixture into 8 patties. Heat a large, nonstick pan over high heat and cook the patties until golden brown on both sides and just cooked through, about 5 minutes per side.
Slice each biscuit in half, put a sausage patty on the bottom of each biscuit and replace the tops. Serve 2 sausage biscuits per person.