When I lived in Dallas, we often had potluck Tex-Mex dinners, altho not real potluck in the true sense as the menu was almost always the same. There was an appy (queso or 7-layer dip w/tortillas), guacamole was a must & dessert was a flan or sopaipilla. I always made the main course - Mexican Spaghetti w/a “med heat level”, which was begun at the stove that afternoon & assembled in my crock pot to stay warm & serve easily that evening. The “heat level” is controlled by the picante sauce you use, but can be raised or lowered by adding spices to suit your taste preferences or using mild picante sauce. This is easily halved for a family meal. Enjoy!