Easy Chicken Fajitas

Name: Easy Chicken Fajitas
Ingredients: 1/2 tsp cumin; 1 tsp chili powder; 1/4 tsp cayenne; Juice of one small lime; 1 tsp minced garlic (about 2-3 cloves); 2 Tbsp olive oil; 1.5 lbs boneless skinless chicken breast, cut into strips; 3 Tbsp vegetable or canola oil, divided; 1 medium yellow onion, sliced thinly; 8 oz white or baby bella mushrooms, sliced; 2 bell peppers (any color), de-seeded and sliced; Seasoned salt, to taste; 1 tsp minced garlic; 1/2 tsp chili powder; Fajita fixings of choice, which could include avocado, guacamole, tomatoes, shredded lettuce, tortillas, lime wedges, salsa, & more (plus cheese/sour cream, if you're not dairy free)