Venison Burger with Potatoes and Lettuce Salad

I didn't make this burger (hard to get ground deer meat, unless you know someone who deals in this part of the business). Bought from Sainsbury's. Tasted not dissimilar to a burger made with beef, but the packaging said the burgers were 90% venison. I'm familiar with deer meat, so the fact that the burgers don't taste the way you might imagine, is puzzling. 

I also bought venison fillets on the same supermarket trip, and these clearly are deer meat. They should be fine.

The burgers were cooked on the middle shelf of an oven heated to 200 deg C for between 22 to 27 minutes, turning the burgers a couple of times.  Something to watch occasionally during the process. 

Served with salted boiled potato, and a lettuce salad. Dressed with white pepper, and a pinch of Tarragon.