This Mexican-inspired casserole is synonymous to comfort food in my book. The ingredients are pretty basic but it’s the combination of choice herbs and spices that really make this Mexican ground beef paleo casserole dish stand out. High in protein, paleo-friendly, and packed with flavor, Mexican ground beef casserole is indeed satisfying if you give it just the right amount of herbs and spice. The heat comes from cayenne pepper, chili powder, ground cumin, and sliced jalapeno. Together, it may sound like a lot of chilis but you can adjust the spice level based on your own preferences. Personally, I like mine a little more on hotter side but feel free to expierment.