Cook pasta in a pot of lightly salted boiling water until just tender. Drain well and mix in the garlic, set aside.
Preheat your oven to 180 C.
In a large skillet, heat a splash of olive oil and add the bell pepper, onion, and celery and cook for 3-5 minutes to soften them. Then mix in the paprika, cayenne pepper, salt and pepper to taste.
Add the chicken to the skillet and mix occasionally to just cook the chicken through, takes just a few minutes. Mix in the flour and cook for another minute or two.
Add the stock to the skillet and the Gorgonzola cheese and mix it in and let the cheese melt. Remove from heat and mix the chicken and vegetable mixture into the pasta.
Pour the pasta mixture into a lightly oiled 9x13 baking dish, sprinkle the Havarti cheese over the top and bake for 30 minutes or until the cheese is melted and just starting to brown.