Set a large pot of water to boil, then cook pasta according to package directions.
While the pasta is cooking, make the dressing by combining the garlic, lemon juice, and olive oil in a large bowl.
Drain the pasta, let cool a few minutes, then add to bowl. Add spinach leaves and feta, and combine everything.
Salad can be eaten as is (slightly warm) or cooled for up to four hours (more may wilt spinach) until you’re ready to eat.
Grill salmon on an outdoor grill or under a broiler until fish flakes easily. Time will vary according to thickness of fish but will usually be 10 minutes or less.