Heat oil in a large pot, sauté garlic, onion, green bell pepper until soft.
Melt butter in a medium-sized pot. Once melted, add flour and stir until smooth. Cook for about 6 to 7 minutes or until the color becomes light, golden sandy.
Slowly add milk until the mixture becomes smooth, then add all-purpose cream and parmesan cheese. Mix well and bring to boil. Cook for 8 to 10 minutes with continuous stirring, then remove from heat.
Mix all ingredients in a bowl until well blended and smooth.