According to the relatively controversial Dr. V.V. Vetrano, there may be small amounts of B12 in everything that contains B-vitamins. This article suggests that there are small amounts of B12 in...

Green Beans (0-0.2 mcg)
Beets (0-0.l mcg)
Bread, Wholewheat (0.2-0.4 mcg)
Carrots (0-0.1 mcg)
Oats (0.3 mcg)
Peas (0.0-1.0 mcg)
Soybean Meal (0.2 mcg)