The free-wheeling cousin of sushi, a good poke bowl can be a make-your-own adventure meal with whatever you have on-hand. The fish can be sauced or un-sauced, depending on your preference. Here are some ideas:

To season your fish, mix together the following to taste:
Soy sauce
Sesame oil
Rice vinegar
Ginger
Garlic
Green onion
Sriracha

To make your poke bowl, compose many or few of the following together in a bowl:
Sushi rice flavored with rice vinegar and sugar and/or mirin
Tuna or salmon, seasoned (or not) as above
Cooked and shelled edamame
Seaweed salad
Cucumbers, raw or made sunomono style
Avocado
Pineapple or mango
Sliced green onions
Sesame seeds
Nori paper square
Fried onions
Spicy sriracha mayo
Spicy wasabi mayo