In your food processor or blender, mix the mayonnaise, sour cream, milk, onion, and garlic. Blend until combined and the onion and garlic is finely chopped. Add the jalapeno chile pepper and red bell pepper; pulse 4 to 5 times to chop and incorporate these into the mixture. Add the salsa, chile powder, cayenne pepper, paprika, dill weed, and oregano; pulse 2 or 3 times, just enough to mix these ingredients in.
Place the mixture in the refrigerator for at least 20 minutes. It will be ready to use after allowing to set long enough for the flavors to begin to blend together.
* Low fat mayonnaise and sour cream iare ok to use, but not fat free.
Southwest Spicy Sauce Recipe: https://whatscookingamerica.net/sauces_condiments/southwestspicysauce.htm