Tyga's Back on the Kylie Beat with Look-alike Chick

Tyga has the perfect way to get over Kylie Jenner ... just find a new model.

He did dinner with a mystery brunette at Serafina Sunset in WeHo Thursday evening, and the attraction was obvious. Not only was Tyga staring her down like she was dessert -- and maybe she was -- the chick looks very familiar.

Young, busty, shoulder-length dark hair with a love for skin tight jeans -- and best of all -- loves to rock crop tops.