"We had the t-shirts made up, and it's the Monsters, Inc. logo with a 'W' for Wilkerson," she tells PEOPLE

By peoplestaff225
September 22, 2015 01:30 PM

Melissa Joan Hart and husband Mark Wilkerson spiced up their trip to Disney World over the weekend with hilarious matching “Wilkerson, Inc.” t-shirts and Mickey Mouse ears.

The family of five, all donning the custom Monsters, Inc. inspired tees, traveled to the Florida theme park to celebrate their youngest family member, Tucker, who turned 3 on Friday.

Hart tells PEOPLE she was so excited for the trip, that she painted her nails blue and green to match the color scheme of the shirts.

“All Pixar movies are so fantastic, especially for boys. We had the t-shirts made up, and it’s the Monsters, Inc. logo with a ‘W’ for Wilkerson,” she says. “It’s our favorite movie!”

Chloe Rice/Disney Parks/Getty

Hart, an advocate for healthy living, says that breakfast is the biggest meal of the day at her house-and one that brings her family closer together.

“My husband grew up in the South so breakfast is a big deal. There’s always biscuits or cinnamon rolls after eggs or oatmeal,” the actress, 39, says. “For an afternoon snack, Pirate’s Booty is a good option for when the kids are on the road to sports or a music lesson.”

Although her kids, Tucker, Brady, 7½, and Mason, 9½, are involved in everything from “rock camp where they play guitar and drums and keyboards,” to football, the family makes it a point to eat together as often as they can.

“Mark usually cooks something healthy up at home,” says Hart. “Taco night is a favorite. He learned from his grandma, and he’s got some really great recipes. I have to be careful on Superbowl Sunday though, I can’t go near his great cheese dip!”

As for her own diet, Hart says that proportion is key in maintaining a healthy weight.

“Having the right amount of food at the right time, and eating five small meals a day and drinking lots of fluids is key,” she says. “Also, lots of sleep!”

The mom of three has kept herself busy lately designing spring fashions for her children’s clothing company, King of Harts, in which each new seasonal line is dedicated to a different U.S. city.

“Our first was Montauk, New York, and it was a little preppy with lobster and shark graphics. The upcoming fall back-to-school line is inspired by Lake Tahoe, my family’s favorite vacation spot,” she says.

“Our spring 2016 will be Detroit ‘Motor City,’ featuring cars. It will have a more urban feel.”

The actress will be hosting a King of Harts stand at the Elizabeth Glaser Pediatric AIDS Foundation‘s A Time for Heroes event, to be held Oct. 25 in Los Angeles.

— Rose Minutaglio