Cook pasta in a large pan of boiling water 3 minutes, or until just cooked through.
Melt butter and oil in a heavy nonstick pan over medium high heat.
Sauté garlic 2-3 minutes, until soft.
Stir in spinach and cook 1 minute, stirring.
Add pasta and milk to spinach mixture. Season with salt and pepper to taste.
Raise heat to medium high and cook 3 minutes, until sauce thickens slightly.
Stir in cheese and toss gently.