Melt butter; add thyme and green onions. Saut for a minute or two. Add bread crumbs; saut until the crumbs are toasted. Add drained oysters; simmer on low fire until oysters curl. Add parsley; set aside. In a small pot put anise seed in water; boil slowly for 10 minutes. Strain; add liquid to the oyster mixture. Cook frozen spinach according to package directions; drain well. Add to the oyster mixture; mix well. Add cayenne, salt and pepper. Bake 20 to 25 minutes in a 425 degree oven. Serves 10.