I make this on regular basis and it is delish. The trick to get it smooth is that when you mix all the ingrdients then massage /knead into the meat. Really squishing it, then it will be smooth and you do not need a food processor. Here is my version
1 lb extra lean mince beef
1 lb extra lean mince pork
1 xhopped chilli (I put the seeds in to)
salt to taste
2 tsp cumin powder
2 tsp coriander powder
2-3 cloves garlic minced or garlic granules
Put all ingredients in a bowl. knead together until meat is all smooth and spices obsorbed. Put in a loaf tin or an ovenproof dish. Shape the meat to dish shape and smooth the top. Cook in oven 200 dregrees for 30 minutes.
You can eat it hot or cold. I leave mine to cool fown and then slice very thinly. Serve with pitta, lots of salad, chilli sauce and SW chips.