Juicy Pork Fajitas with Bell Peppers

First, prepare the marinade: In a bowl, mix the minced garlic cloves, lemon juice, fajita seasoning mix, salt, pepper, and 3 tbsp of the olive oil.

Wash the pork tenderloin, pat dry, and cut into fine strips. Place in the marinade and mix well so that the meat is completely coated. Let it marinate in the fridge for at least 1 hour.

Cut the onion and bell peppers into fine strips.