The Survivorall-star wed Philadelphia Phillies pitcher Kyle Kendrick on Saturday, Peoplereported.
"I never thought there was 'the one,' but now I believe it," LaGrossa told People. "He's what I needed my whole life and I'm so glad I finally found him."
The couple reportedly exchanged vows and platinum bands by DeSimone Jewelers at an outdoor ceremony in front of 105 guests at the Silverado Resort in Napa, CA. Priscilla of Boston designed the bride's dress, while the groom wore a tuxedo by Hugo Boss. Their two dogs, Bebe and Champ, were dressed in a dress and a tux and acted as flower girl and ringbearer.
While her 2006 marriage to longtime boyfriend Michael Ward ended in a year, LaGrossa feels it's meant to be this time around.
"You know when it feels right, and this feels so right!" LaGrossa said. "I'm really, really happy."
The happy bride also said her wedding dress inspired the design of their ceremony.
"My dress has two crystal brooches, so the whole theme is based around the brooches," LaGrossa explained.
Following the wedding, the couple reportedly took a ride in a horse-drawn carriage and later joined their guests for cocktails and appetizers -- including Philly cheese steaks in honor of the groom's baseball team.
In addition to LaGrossa's inspired crystal theme, event designer Eden Rodriguez decorated the reception with centerpieces adorned with petite feathers and antique crystals, featuring white hydrangeas, sterling silver roses and orchids in glass vases with floating candles, according to People.
The newlyweds' first dance was to Brad Paisley's "Then."
"They're absolutely wild about each other," the couple's wedding planner, Joannie Liss of Joannie Liss Events, told People. "They are so in love -- They couldn't wait to get married."
The couple fed their guests filet mignon and sea bass, and had an eight-piece band called Mixx Company supply the music.
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LaGrossa, who currently co-owns a restaurant in Philadelphia, competed on Survivor: Palau and Survivor: Guatemala -- the show's ninth and tenth seasons -- in 2005 before returning to compete on last season's Survivor: Heroes vs. Villains all-stars edition. She was the second returning castaway voted out of twentieth season.