|Canned pineapple slices||8 Ounce (1 Can)|
|Teriyaki sauce||3⁄4 Cup (12 tbs)|
|Ground beef||1 Pound|
|Sweet onion||1 Large, sliced|
|Onion/Sesame seed buns||4 , split and toasted|
|Swiss cheese slice||4|
|Bacon strips||4 (Cooked)|
Drain pineapple juice into a small bowl; add teriyaki sauce.
Place 3 tablespoons in a resealable plastic bag.
Add pineapple and rotate to coat; set aside.
Shape beef into four patties; place in an 8-in.square baking dish.
Pour the remaining teriyaki sauce mixture over patties; marinate for 5-10 minutes, turning once.
In a skillet, saute onion in butter until tender, about 5 minutes.
Grill or broil burgers until no longer pink.
Place pineapple on grill or under broiler to heat through.
Layer lettuce and onion on bottom of buns.
Top with burgers, cheese, pineapple and bacon.
Replace tops; serve immediately.