Philly cheese steak nachos - Le Coup de Grâce

Ingredients

• 2 1/2 cups marbled cheddar cheese (3/4 of a large brick)
• 1 tablespoon cornstarch
• 1x 354 ml can 2% unsweetened evaporated milk
• 1/2 teaspoon smoked paprika
• 2 shots tabasco or more to taste
• Salt and pepper from the mill
• 450 g top sirloin beef, very thinly sliced
• 3 tablespoons soy sauce
• 2 tablespoons Worcestershire sauce
• 1 yellow onion, halved, thinly sliced
• 2 garlic cloves, finely chopped
• Olive oil
• 1/2 red bell pepper, thinly sliced
• 1/2 green bell pepper, thinly sliced
• 1/2 teaspoon Italian spices
• 275 g restaurant style Tostitos chips
• 300 g fontina cheese, grated