Preheat and prep: Heat your oven to 400°F (200°C).
Line a baking sheet with parchment for easy cleanup. Pat the tilapia dry with paper towels.
Make the lemon-garlic mix: In a small bowl, combine olive oil, lemon zest, half the lemon juice, minced garlic, paprika, half the chopped herbs, and a pinch of salt and pepper.
Season the fish: Place tilapia on the prepared sheet. Spoon the lemon-garlic mixture evenly over the fillets.
Add a light sprinkle of salt and pepper if needed.
Bake: Bake for 10–12 minutes, depending on thickness. The fish is ready when it flakes easily with a fork and turns opaque. Thicker fillets may need another 2 minutes.
Prep the asparagus: While the fish bakes, set up a steamer basket over a pot with an inch of simmering water.
Add the asparagus, cover, and steam for 3–5 minutes, until bright green and tender-crisp.
Finish the asparagus: Transfer asparagus to a plate. Toss with a drizzle of olive oil or a pat of butter, the remaining lemon juice, a pinch of salt, black pepper, and red pepper flakes if you like heat.
Finish the fish: When the tilapia is done, sprinkle with the remaining chopped herbs. Add a small dab of butter on each fillet if you want extra richness.
Serve: Plate the fish with the asparagus.
Add lemon wedges on the side. Taste and adjust seasoning—sometimes an extra squeeze of lemon makes everything pop.