Grate or roughly chop the cheese into small cubes. Place in the cheese, garlic, cornflour, paprika, onion powder and evaporated milk into a small saucepan. Place the pan over medium heat and stir regularly with a wooden spoon so the cheese doesn't catch at the bottom of the pan. Once the cheese begins to melt, switch to a whisk, then whisk until the cheese has completely melted and the sauce is smooth. Remove the pan from the heat.
Add the hot sauce into the cheese sauce and stir to combine. Have a taste of the sauce and add salt and pepper if needed. Keep in mind not to add too much salt because the sausages and bacon are salty. Leave the sauce in the pan and set aside. The sauce will slowly thicken and develop a thin film on top. Just stir it occasionally or reheat the sauce to thin it out again.
Preheat oven to 90°C (48°F). Roughly slice the bacon into small strips. Remove the casing from the sausage by running a sharp knife length way into the sausage, then use your fingers to peel the casing from the sausages.
Heat an oven-proof medium-sized frying pan over medium to high heat. Add in the bacon, cook and stir regularly until bacon releases some fat, then add in the sausage meat. Break up the meat into little pieces whilst stirring. Cook until the sausages have slightly browned and fully cooked. Place the frying pan in the oven to keep the meat warm whilst frying the chips.
Fry/bake/air-fry the hot chips, wedges or French fries as per the instructions on the packet until golden and crispy. Place the chips on a large serving plate. Pour half of the cheese sauce over the chips. If it's too thick, reheat it over medium to thin it out. Place the remaining sauce into a little serving bowl. Spoon on the bacon and sausages on top, then add the tomatoes, jalapeños and spring onions. If desired, pour a little more cheese sauce on top. Serve any remaining meat or salad in separate bowls next to the loaded fries and cheese sauce. Enjoy immediately.