Spray a 6 or 8 quart crock pot with non-stick spray.
Add diced onions and jalapeno to the pot.
Place the chicken breasts on top of the onions and peppers.
Next, sprinkle the seasonings on top of the chicken.
Pour the salsa over the chicken.
Cover and cook on high for 4-5 hours or on low for 7-8 hours.
Add the uncooked rice to the pot the last half hour of cooking. Stir.
Once done, shred the chicken, add back to the crock pot, stir, and then make tacos.
Heat oil in a large skillet over medium heat.
Fry corn tortillas and then add shredded chicken, shredded cheese, and top with sliced green onions and cilantro.