In a mixing bowl combine beef, bacon and mustard. Mix until all combined.
Divide mince mixture into three or four balls. Using hands mould each ball into a burger shape making sure there are no big cracks and burger is even thickness all over. The thinner the burger quicker it will take to cook.
Gently rub a little oil onto burger and season it like you would a steak.
Place burger onto a hot grill and cook four approx 3-4 minutes before trying to flip or move it. Let it create a good seal. Flip burger and cook for another 3-4 minutes. Flip again and layer cheese onto burger and let cheese melt. Remove from grill and let rest while you set up your burger buns.
Slice buns in half. Toast them under grill with a slice of cheese on the bottom half. Starting from the bottom half of the bun burger, bbq sauce, mayo, pickles and the lid.