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Bird's-eye view of two tilapia fillets topped with lemon slices and garlic butter sauce, garnished with diced onion and black pepper.

Baked Tilapia in Lemon Garlic Sauce

Butter-baked tilapia in lemon garlic sauce with peppers and onions, ready in 25 minutes.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Main Course
Cuisine American
Servings 4 servings
Calories 290 kcal

Ingredients
  

  • 4 large Tilapia fillets
  • 1 large onion, thick sliced
  • 2 cups peppers, cut into medium-thick strips
  • 1/4 cup melted unsalted butter
  • 2 teaspoons minced garlic
  • 3/4 teaspoon salt
  • 1/4 teaspoon pepper
  • 2 teaspoons Italian seasoning (or mixed dry herb)
  • 1 teaspoon smoked paprika (substitute with regular paprika)
  • 1/2 teaspoon onion powder (optional)
  • 2 tablespoons fresh lemon juice
  • 3-4 fresh lemon slices

Instructions
 

  • Make Lemon Butter Marinade:

    Combine melted butter, garlic, lemon juice, Italian seasoning, paprika, onion powder, salt, and pepper in a bowl to create the marinade.
  • Preheat Oven to 400°F:

    Heat oven to 400°F (205°C) and position the rack in the upper third section.
  • Spread Vegetables on Tray:

    Spread sliced onion and pepper strips in a single layer across a baking tray.
  • Brush Marinade on Tilapia:

    Set Tilapia fillets atop the vegetables. Brush the marinade generously over both sides of each fillet.
  • Top with Lemon Slices:

    Lay lemon slices on top of the fish.
  • Bake Tilapia 10-12 Minutes:

    Cook in the upper third of the oven at 400°F (205°C) for 10-12 minutes.
  • Serve with Rice and Sauce:

    Present over a bed of rice with vegetables. Drizzle remaining lemon butter sauce from the pan over the fish.
Keyword baked tilapia in lemon garlic sauce, fish dinner recipes, fish recipes for dinner