For the sauce, combine 4 tbs. green mustard with 4 tbs. sour cream in a small bowl and mix well.
Rinse the radicchio leaves in cold water, drain, and cut in strips. Wash the basil and roughly chop it.
Remove the frozen Harvest Farms Spezial Burger Patties from the package and fry them, turning several times, until the desired degree of doneness is reached. Fry the bacon without added grease until crisp.
Spread the bottom halves of the buns with 2 tbs. sauce and some radicchio. Add a Harvest Farms Spezial Burger Patty on top, followed by blue cheese and bacon. Garnish with basil. Place the remaining toasted bun halves on top and serve immediately.
Goes well with: Sweet potato fries or potato wedges