Grilled Salmon Skewers with Garlic and Dijon

lbs salmon fillets, cut into 1-inch squares

large lemons thinly sliced

(10-inch) bamboo skewers

parsley, freshly chopped

large or 3 small garlic cloves, pressed

Dijon mustard (we used grey poupon)

salt

ground black pepper

light olive oil (not extra virgin, pick something with a higher smoke point)

fresh lemon juice from ½ large lemon or 1 small lemon