In another bowl combine crab meat, bell pepper, jalapenos and red onion. Mix gently to avoid breaking up any of the lump crab meat. I used the food processor to mince my veggies- just saved a little bit of time.
Cut avocado down the center and halve. Using a large spoon, gently scoop out the avocado halve from the skin in one piece. Repeat for the second side.
Arrange a bed of spring mix lettuce on two plates. Place 2 avocado halves on top of each bed of lettuce. Spoon crab into the pit wells of the avocados. Drizzle with sweet miso dressing. Serve!