Assemble: In the same skillet, pour out all but 1 tablespoon of the cooking oil (all the browned bits can stay in!). Turn the heat off. Add 1 cup of the marinara sauce and
hearts of palm pasta. Stir to coat the noodles. The residual heat in the skillet will warm the noodles and pasta. Add the chicken back into the skillet and nestle it into the pasta. Top the chicken breasts with the remaining 1/4 cup marinara sauce. Then, sprinkle the mozzarella cheese on top of the chicken.