Cheesy White Sauce Macaroni

Ingredients

• 1 1/2 cups Macaroni shells
• 1/2 teaspoon Salt (for boiling)
• 1 tablespoon Butter (for sautéing)
• about 1 teaspoon Oil (optional, for sautéing)
• 1 Medium sized onion
• 5 large Garlic cloves
• 3 different colors Capsicum
• 1/2 teaspoon Salt (for seasoning vegetables)
• 1/2 teaspoon Pepper
• 1 teaspoon Red chilli flakes
• 1 teaspoon Italian seasoning mixed herbs
• 2 tablespoons All-purpose flour (Maida)
• 1 1/2 cups Milk
• 1/4 teaspoon Salt (for sauce)
• 1/2 teaspoon Pepper (for sauce)
• 1/2 teaspoon Chili flakes (for sauce)
• 1/2 teaspoon Mixed herbs (for sauce)
• 2 Cheese slices