1. Season both sides of the fish with salt and pepper and set aside.

2. Heat the olive oil in a large nonstick skillet (that can be covered) over medium heat. When it shimmers, add the fennel, season lightly with salt and pepper, and cook until fennel starts to brown, 8 to 10 minutes.

3. Add the garlic and cook until fragrant, about 30 seconds. Add the wine and raise heat to medium-high. Simmer until wine reduces slightly, about 2 minutes.

4. Add the tomatoes along with their juice. Simmer until the sauce thickens and the fennel is soft, 6 to 8 minutes.

5. Reduce heat to medium-low. Stir in the olives and capers. Add the fish, nestling it into the sauce. Cover skillet and simmer until fish is opaque all the way through, 8 to 10 minutes. Fish overcooks quickly, so watch carefully. For fillets thinner than one inch, check at the 7-minute mark. If the fish is opaque, it's done.

6. Gently stir basil into the sauce, and serve with lemon wedges.

Make it Faster:

An even quicker version of this dish is Spicy Sauteed Fish with Olives and Grape tomatoes, which is ready in under 20 minutes: Salt and pepper the fish, then cook in about 2 tablespoons of olive oil for 3 minutes on each side. Transfer to a platter and keep warm. Add ¼ cup chopped fresh basil, ½ teaspoon red peper flakes, 1 pint grape tomatoes, halved, ¼ cup chopped, pitted Nicoise or Kalamata olives, 3 garlic cloves, minced, and the grated zest and juice of ½ lemon to the pan and cook until the tomatoes are soft and juicy, about 3 minutes. Season the sauce with salt and pepper, then spoon over the fish and serve with rice to catch all those delicious juices.