Step 1: Cook Quinoa : Rinse quinoa, boil in water or broth, simmer for 15 minutes, and fluff with a fork.
Step 2: Make Quinoa Salad : Combine cooked quinoa with vegetables, parsley, olive oil, and lemon juice. Season and set aside.
Step 3: Prepare Cod Fillets : Pat dry, season with salt and pepper.
Step 4: Cook Cod : Heat olive oil in a skillet, cook fillets 3–4 minutes per side until done. Remove from skillet.
Step 5: Make Lemon Butter Sauce : In the same skillet, melt butter, sauté garlic, add lemon juice and zest. Pour over cod.
Step 6: Serve : Plate cod with quinoa salad, garnish with parsley and lemon wedges.