I’ve never used mustard greens in anything - but it sounds interesting.
I make a ‘green soup’, and may try substituting some of the kale for mustard greens. Thanks!:
https://freerepublic.com/focus/f-chat/3259353/posts
Easy Avgolemono Soup
PREP Boil cup water, 1/2 c raw rice; simmer tender 20 min.
METHOD Heat/whisk 10.75 oz can condensed cream of chicken soup, 1 1/4 c milk.
JUST BEFORE SERVING, Add cooked rice; heat thru. Add 2 oz lemon juice slowly til subtle lemon taste develops.
SERVE warm with French rolls, pots of honey-butter. Sprigs of dill, lemon wheels garnish.
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CHEF NOTES: Don't use instant rice; best results w/ Riceland's Extra Long Grain,
FRESH-squeezed lemon juice, 1% (or creamier) milk, lots of fresh cracked pepper.