Fry beef in oil, add chopped onion, and Garlic.fry until onion has softened. Then add Paprika, green Chillies , can of tomatoes stir mixture. Transfer to croc pot then add beef stock, stir and add the jar or can of Salsa mix stir . Bring to boil and simmer stirring occasionally. Simmer for 40 mins then add Tomato puree to thicken. Pour into a large bowl and arrange tortillas around the outside of the bowl standing up around the edge of the bowl. Sprinkle Cheese of your choice around the middle to melt.