white fish fillets (e.g., cod, haddock, or tilapia), rice (jasmine or basmati), carrots, peeled and sliced, fresh spinach, onion, finely chopped, garlic cloves, minced, coconut milk, yellow curry powder, vegetable stock cube, oil (e.g., sunflower or olive oil), Salt and pepper, to taste, lemon or lime, cut into wedges (for serving)