Fiesta veggie fajitas

Ingredients

• 3 tablespoons olive oil
• 2 garlic cloves, minced
• 2 green bell peppers, diced
• 2 red bell peppers, diced
• 2 yellow bell peppers, diced
• 1 onion, thinly sliced
• 4 green onions, finely chopped
• salt and pepper, to taste
• 6 flour tortillas