With all that in mind, it would stand to reason that caramelizing onions in a slow cooker would seem like a genius hack.
Pile the sausage, peppers and onions on a fluffy roll or on top of pasta for an easy dinner. If you love a hearty slow cooker ...
Scatter with the spring onions, re-cover the slow cooker then cook for another 30 minutes until the onions are tender. Stir in the beansprouts, then drizzle with a little more sesame oil.