Bain and Company partner Mikey Vu estimates meal kits comprise at least $1.5 billion of the $850 billion U.S. grocery market. He explained to CNBC that there's plenty of room for growth.

"We estimate [meal kit] awareness is as high as half the general grocery shopping population, but that trial rate is still pretty low (~6%)," Vu told CNBC in an email. "We see significant opportunity for growth over the next several years, potentially more than 50 percent market growth in the next 6-7 years."

Read full article on CNBC here.