1. Prepare grill for high heat.
2. Prepare bacon according to package directions; drain. Crumble bacon.
3. Stir crumbled bacon into guacamole dip.
4. Shape sausage into eight thin patties.
5. Top four patties with bacon mixture; cover with remaining patties.
6. Pinch edges together to seal.
7. Place burgers on grill. Grill 6 to 7 minutes on each side.
8. Fill buns with burgers.
9. Serve with salsa, if desired.