October 23, 2014 01:00 PM

Araya Diaz/Wireimage

Marcela Valladolid has a bun in the oven!

The celebrity chef, who is best known for putting easy spins on Mexican cuisine as a host on Food Network’s The Kitchen, is pregnant with her second child, her rep confirms to PEOPLE exclusively.

Valladolid is due in the spring, and her child will be a sibling for the food guru’s 10-year-old son, Fausto.

“Fau asks daily about the gender of the baby and has already picked out names for both a brother or a sister,” the mom-to-be, 36, tells PEOPLE.

“I [come from] a huge family with lots of kids, many younger than him, and he’s known as the cousin that takes care of the little ones. He’s almost maternal when it comes to toddlers. He’s been asking for a really long time for a baby brother or baby sister and is thrilled it’s finally happening.”

Valladolid is currently in New York City filming season 3 of The Kitchen, but that doesn’t mean she’s able to chow down all day long.

“It’s funny because I’m eating healthier than I have in a long time,” she says. “Not necessarily because I want to, but because the morning sickness will only allow for small, light meals throughout the day.”

To combat the nausea, Valladolid incorporates veggies from her home garden and steers clear of greasy fare. “My body at the moment is just not tolerating anything too heavy, rich, spicy or fatty,” she explains.

The pregnancy may not come as a total surprise to the San Diego-based chef and cookbook author’s fans since she’s been dropping hints on social media for the past few weeks. She recently shared a sonogram of her baby-to-be on Instagram, captioning the pic “Good morning world. What’s happening out there?”

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— Catherine Kast

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