i now prefer steel cut oats to rolled oats. did a bunch of searching, and this is the cooking technique that works best for me (quick and easy). before bed, bring 4 cups of water to boil in a pot on the stove. turn off the stove and pour in 1 cup of steel cut oats. stand there for a minute and make sure it doesnt boil over. cover the pot and let it sit overnight. when i wake up, store the cooked oats in tupperware (5-6 cup container) in the fridge. to serve, just cut out a 1/4 of the oats, add a little water, and heat in the microwave for 1 or 2 minutes. stir in protein powder for flavoring and natural almond butter for good fats. as for taste/texture, i'm not picky, but i did not notice a difference between the batch of oats that i had cooked on the stove standing around and stirring for 30 minutes.
other techniques involve crock pots (with low setting), rice cookers (with brown rice or porridge options), and pressure cookers.