01 - Preheat your oven to 400°F. Line a baking sheet with parchment paper or lightly grease it.
02 - Place the salmon fillets on the prepared baking sheet. Drizzle with olive oil, sprinkle with salt, pepper, and paprika (if using). Arrange lemon slices on top.
03 - Bake for 12–15 minutes, or until the salmon is opaque and flakes easily with a fork.
04 - Meanwhile, prepare the salsa: In a medium bowl, combine diced tomatoes, onion, jalapeño, cilantro, lime juice, olive oil, salt, and pepper. Toss gently to mix.
05 - Remove salmon from the oven. Transfer to plates and spoon the fresh salsa generously over each fillet. Serve immediately with lemon wedges, if desired.