bake the beets whole in the oven at 425 until easily pierced with a fork (abt 40 mins)
keep the lid on as they cool so they steam a bit, which will make peeling very easy
peel the beets and slice as thinly as you can
in a bowl, mix together all spices and sauces and condiments, then mix the sliced beets in there
at this point you can decide whether you just want to toast your bread and put the beets on it and eat it, or make more of a panini/grilled sandwich situation
highly recommend grilling it for optimum deliciousness