If you grew up tearing open the plastic wrap on a personal-sized pie, hearing that Celeste Frozen Pizza has officially been pulled from production probably stings a little. For over six decades, Mama Celeste was the ultimate comfort food, whether it was an after-school snack nuked in the microwave or a budget-friendly lunch during a tight week. But all good things must come to an end, and grocery store freezers are about to look a little less nostalgic. Let’s look into what happened, why parent company Conagra Brands decided to pull the plug, and what this means for the broader econom The End of an Era: What Happened to Celeste…