What Kristin Cavallari eats in a day, from leftovers for lunch to chocolate before bed

Kristin Cavallari is a fan of healthy eating.Noel Vasquez/Contributor/Getty Images

• Reality TV star Kristin Cavallari told Insider what she eats in a typical day.
• The author of the health-conscious cookbook "True Comfort" said she's usually up from 5:30 a.m. and in bed by 9 p.m.
• For breakfast — Cavallari's favorite meal — she'll often make a smoothie, eggs, or espresso overnight oats.
• Lunch is typically a big salad or leftovers from last night's dinner, and before bed she'll treat herself to some dark chocolate.

Kristin Cavallari may be known for playing the villain on MTV's "Laguna Beach" and "The Hills," but the reality star proved those days are long behind her as the star of the E! show, "Very Cavallari."

Her namesake show gave viewers a look at Cavallari's life as the CEO of jewelry brand Uncommon James and as a cookbook author with a love of healthy food.

Speaking to Insider ahead of the September 29 release of her latest cookbook, "True Comfort: More Than 100 Cozy Recipes Free of Gluten and Refined Sugar," Cavallari shared what she eats in a typical day from when she wakes up to get her kids ready at around 5:30 a.m. to her 9 p.m. bedtime.