If you are having rice or pasta - cook it now according to the directions on the package
Preheat oven to 450 degrees F
Peel sweet potato and chop into about 1 cm cubes
Once oven is heated, place butter onto a foil covered baking sheet and put into the oven until melted
Add chopped sweet potato to baking sheet and cover in butter. Add some salt, to taste
Bake sweet potato for 10 minutes
While sweet potato is baking, add oil to large skillet and turn on to medium heat
Cut your sausage into 1 inch pieces and add to skillet. Cover with lid, stirring occasionally
Chop bell peppers and onion, keeping onion separate from peppers
Once sausage is cooked on the outside, add bell peppers to the skillet. Cover with lid and continue to stir occasionally. Add salt and pepper, to taste.
By now, the sweet potato should be done. Test with a fork, it should be soft enough to eat (when I say test with a fork, I mean try some) Set aside as you will be adding this to the skillet last
Keep an eye on the bell peppers, once they begin to soften, add onion to skillet
Once onions have softened, add sweet potato and mix
Serve by self or on noodles/rice