Bring a saucepan of lightly salted water to a boil over medium heat, stir in the macaroni, and return to a boil. Cook the macaroni uncovered, stirring occasionally, until it is cooked through but still firm to the bite, about 8 minutes. Drain well.
Meanwhile, heat 2 tablespoons of olive oil in a skillet over medium heat. Sprinkle both sides of the tilapia fillets with lemon juice, oregano, basil, cilantro, salt, and pepper, and lay the fillets in the heated skillet, making sure they don't touch. Sear the fillets for 2 to 4 minutes on each side, until the fish is golden brown on the outside, and opaque and flaky inside.
Return the hot, cooked macaroni to the saucepan, and stir in 1 tablespoon of olive oil to coat the pasta. Sprinkle on the Parmesan cheese, stir to mix, and stir in 1 teaspoon of lemon juice, the garlic powder, basil, oregano, cilantro, salt, and pepper. Divide the pasta between two plates, and top each with a tilapia fillet.