Remove papery outer skin from garlic (do not peel or separate cloves). Cut top off garlic bulb; brush with 1 tablespoon oil. Wrap in heavy-duty foil. Bake at 400° for 40-45 minutes or until softened. Cool for 10-15 minutes. Squeeze softened garlic into a small bowl; set aside.
Cook fettuccine according to package directions. Meanwhile, in a large skillet, saute shallot in butter and remaining oil until tender. Stir in the cream, wine, salt and pepper; cook for 4-5 minutes. Add Havarti cheese; cook for 2-4 minutes or until sauce is thickened, stirring occasionally. Stir in spinach.
Drain fettuccine; place in a large bowl. Add cream sauce and garlic; toss to coat. Sprinkle with Parmesan cheese.