01 - Bring a large pot of salted water to a roll. Add cauliflower florets and garlic. Cook for 8 to 10 minutes, or until very tender. Remove with a slotted spoon and set aside.
02 - In the same boiling water, cook pasta according to package directions. Reserve 1 cup of pasta water, then drain the pasta and set aside.
03 - In a blender or food processor, combine the cooked cauliflower, garlic, butter, milk, Parmesan cheese, cream cheese, olive oil, salt, and pepper. Blend until perfectly smooth and creamy. Add reserved pasta water incrementally, if necessary, to achieve the desired sauce consistency.
04 - Return the cooked pasta to the pot. Pour the cauliflower Alfredo sauce over the pasta and toss thoroughly until evenly coated.
05 - Stir in the everything bagel seasoning. Taste and adjust seasoning as needed for optimal flavor.
06 - Serve immediately, topping with additional everything bagel seasoning and fresh parsley, if desired.