Valley Flora Farm (Langlois) offers a nice Spring Raab mix: Sweet tender buds of their overwintering brassica crops, eaten like broccolini.
The Spring Raab season starts with lacinato buds and then moves into other kale varieties, cabbage, collards and brussels sprouts for a colorful mix. The mix has been washed and dried at the farm, so feel free to store it as is in your crisper. Use within the week.
Here’s a great blog showing a number of ways to utilize this over-wintering Spring Raab mix: How to Prepare Spring Raab Mixes