Fit & Fresh offers its Fit & Fresh Perfect Portion Meal Prep Kit for $34.99. Coupon code "2017PORTION" drops it to $19.99. With $5 for shipping, that's the lowest total price we could find by $15, except for the mentions below. It includes four oval 1-cup containers with ice packs, four rectangle 2-cup containers with ice packs, one healthy food snacker with ice pack, and one breakfast bowl with ice pack. Deal ends January 17.
Note: Amazon has it for the same price shipped for Prime members and JCPenney has it for the same price via coupon code "DEALS42" with in-store pickup.