The kits were sold in five provinces and traced back to Salinas, Calif.
They suspect another E. coli outbreak.
Four types of salad are being recalled.
The products have been pulled off shelves at Whole Foods, Walmart and other retailers.
A string of illnesses was linked to E. coli in the lettuce in October.
The recall affects at least six provinces.
The bacteria is behind a recent string of illnesses tied to romaine lettuce.
Fifteen people in Quebec and three in Ontario have fallen ill.
Oil may minimize risk of cross-contamination, which can lead to foodborne disease.
Roughly four million Canadians are affected by food-borne illness each year.