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Sounds like a home run!

When Joanna Garcia weds Nick Swisher this weekend, the actress will wear a gown by famed designer Monique Lhuillier, can exclusively reveal.

The Better with You star, 31, will tie the knot with the New York Yankees slugger, 30, this Saturday at the Breakers Resort in Palm Beach, Fla., a source tells Us. Members of the bridal party include Jamie Lynn Sigler, Reba McEntire and Lance Bass -- and about 375 are expected to attend.

Engaged since last May, the couple is set to arrive in Palm Beach Wednesday

"This relationship's been the easiest thing I've ever done," Garcia told Us back in July.

What does she love most about her man? "Everything about him!" she gushed. "I'm impressed and awed by him every single day when I wake up. He's a really happy person and he's just really nice."