Melt butter in a pan; add chicken and cook until just done; move chicken to a baking dish and cover (keep drippings in the pan)
Add flour to the pan and stir until pasty
Add chicken broth, red pepper flakes, and minced garlic, simmer 1 minute
Add cream cheese, cream, tomato sauce and most of the Parmesan cheese, and oregano
Cook over medium-high heat until thick and bubbly; stirring almost constantly
Pour sauce over the chicken; top with the rest of the Parmesan cheese
Bake uncovered at 400 degrees for 10-15 minutes
Notes
The 1 tsp. red pepper flakes makes it pretty spicy, so I would add less if you are feeding to the kiddos.
You can also add one can of drained petite diced tomatoes to the mix, just to add a littl