Here are some pretty good slow cooked chicken tacos I made last night.

3 chicken breasts
1 can diced tomatoes
1 small can tomato paste
1 chopped jalapeno
1 can chopped Serrano peppers
1 tsp cumin
1 Tbsp brown sugar

corn tortillas
chopped lettuce
chopped onions
chopped cilantro
salsa

refried beans
cheese

I put the chicken into a pot that was just big enough for them each to have their own spot. I poured in the canned tomatoes and peppers and the sugar and cumin. It came most of the way up the side of the chicken breasts. I put a lid on this and heated it on low for 3 hours. I had just enough heat for it so be right on the verge of boiling the whole time. You will know they are done when they fall apart really easily. I pulled them out of the sauce they cooked in, ripped it all up, and then put them in a bowl with whatever was still chunky from the sauce. I then poured some of the sauce onto the chicken just to the point where it coated everything and added a little moisture.

I then heated the corn tortillas on a cast iron skillet for about 10 seconds on each side. After the meat, I topped it with lettuce, onions, cilantro and salsa. There was a side of beans with cheese as you can see in the picture.