r u interested in quiche or strata? i have recipes for spinach-sausage quiche and egg-sausage strata that fulfill the ingredients u seem to be craving, but obviously not a casserole per se. the strata can be made the night before, which is handy when entertaining. i also have a hash brown potato pie (with bacon though), which i really like. as for casseroles: egg casserole with sasusage, mushrooms, and salsa/farmer's breakfast casserole (with ham and can be made the night before)/breakfast gratin (with sausage and made in individual gratin dishes)... if interested in any of the above, let me know and i will be more than happy to post.