For the chilli, heat a pan and put the oil on a high heat. Then and add the onions, cook for 4-5 minutes, stirring occasionally until soft. Add the fresh chilli and beef mince and cook for 5-10 minutes stirring occasionally until browned. Add the tomato puree and chilli paste and cook for a further 5-6 minutes.
Add the beer, chopped tomatoes, beef stock and seasoning; bring to the boil and then turn down to a simmer. Cook for 1-1 ½ hours on a low heat.
For the nachos, pre heat your Evolve or 360 grill to maximum temperature with the deep pan plate attached. Add the tortilla chips, spoon the chilli on top and sprinkle the cheese on top of the chilli.