I made this last night for dinner and it was delicious and very easy.  I really like the taste of chipotle with chicken and it also tastes great with sweet potato.  I made this for one person, so if you're making it for 2, double the ingredients, 3, triple it and so on. 
Ingredients:
- 1 small to medium sweet potato, skin on
 - 1 boneless, skinless chicken breast (about 4 oz)
 - 1/2 medium green bell pepper, cored and chopped
 - 1/3 cup chopped onion (I was using 1/4 of a very large onion)
 - 1-2 tsp olive oil
 - 1/4 cup + 1 tbsp chipotle salsa, divided (this was a shortcut since it was premade, but to make your own, take some diced tomatoes and mix in 1-2 tsp minced chipotle pepper with a little bit of the adobo sauce that those come canned in)
 - salt and pepper
 - pat of butter for the sweet potato
 
First I took the sweet potato and poked a few holes in it with a fork, then microwaved it on high for 2.5 minutes.  This speeds up the process of baking it, and if you have a large sweet potato, I advise that you microwave it for longer.  Preheat your oven for 375 degrees, and wrap your sweet potato in foil; when the oven is hot enough, set the potato right on the oven rack and bake for about 15 minutes.  Meanwhile, chop your veggies and heat the olive oil in a saucepan on medium heat.  When the pan is hot, add the bell pepper and onion; sautee until soft, around 6-8 minutes.  Season your chicken breast with a little bit of salt and pepper, but don't go overboard with it.  Make some room on the bottom of the pan and add the chicken breast plus the 1/4 cup chipotle salsa.  Cover the saucepan to cook the chicken through, about 8-9 minutes, turning it over once halfway. 
When the sweet potato is done, take it out of the foil and remove the skin by cutting a few slits in the skin and peeling it away.  Careful though, because that potato is hot!
Mash the potato on your plate, season with a little bit of salt and pepper, add the butter (if desired) and 1 tbsp of the chipotle salsa and combine.  When the chicken is done, turn off the heat and serve the chicken and veggies over the mashed sweet potato.  Suggested garnish: a dollop of sour cream and a few tortilla chips.  Enjoy!