Heat olive oil in a saucepan. Add onion, garlic, and sauteé for a few minutes.
Add lemon zest, lemon juice, sage and spinach leaves, coconut milk, and all the spices. Cook for about 10 minutes. If the sauce looks too thick, add a little bit of water to thin. Taste it and add salt and/or pepper.
Cook your gluten-free pasta according to a package instructions.
Divide pasta between bowls and pour over the lemon sauce. Garnish with lemon slices.
Enjoy!