Patti LaBelle Introduces New Frozen Soul Food Line at Essence Festival Patti LaBelle has partnered once again with Walmart, this time for a line of frozen soul food dishes. She made the announcement at the Essence Music Festival. She will have nine foods like macaroni and cheese, greens, brisket, and chicken and biscuits. So what is the secret ingredient to her 6 cheese “Over the Rainbow” macaroni and cheese? Velveeta! She also encouraged everyone to eat in moderation and take care of their health. She said she does not eat her own mac and cheese because she is a diabetic. She tastes it when she is making it but that’s it. What is the secret ingredient to your mac and cheese?