We don't do collard greens, we eat cabbage instead; so I can't help you there.
But the black-eyed peas are no problem. I cook mine from dried peas. Wash, and sort (making sure to take out any that don't look good and anything that you are not sure is a pea) and then cover with water to let soak overnight. In the AM, drain the peas and rinse. Put your ham bone, ham pieces, ham hock, salt pork or bacon (any of these will season the peas just fine) in your pot or crock pot with half a pot or so of water, add salt and pepper and let boil for a little while (maybe 15 minutes or so). At this point I transfer my water and meat to a crock pot, add peas, add additional water if necessary (it needs to be over the peas by an inch or so). I then add 1/4 tsp. of nutmeg (just part of a family recipe. I have had the peas without the nutmeg and can't really tell a whole lot of difference), most people do not--your choice.
If you want to try cabbage instead of greens, I cook a one pot meal type thing with the cabbage and we love it.
I use boneless pork ribs, green cabbage and red potatoes. Put the ribs in a large pot and cover with water, add salt, pepper and about 1 tbs. of crab boil and a cut up onion. Let boil until the meat is almost done. In the meantime peel your potatoes and cut in half or quarters. Add them to the pot and let boil until almost done--add a bit more salt and pepper to season the potatoes. Wash the head of cabbage and remove the outer most leaves; cut in quarters. Place the pieces of cabbage on top of the potatoes, add a little more salt and pepper and let cook until the cabbage is done. I add butter or margarine.
Neither of these are exact recipes as I follow more of a method than a recipe so amounts should be more to your preference.
Add a pan of cornbread and ooooohhhhhh it is SO good!!!
Some of the restaurants around here serve peas and greens on NYD, but then I am in the south. Even then, its mostly restaurants that are buffet or family served style.