Welsh Lamb fajitas

Ingredients

• 1 tablespoon olive oil
• 2 Welsh Lamb leg steaks, cut into thin strips
• 1 red onion, thinly sliced
• 1 red pepper, sliced
• 1 yellow pepper, sliced
• Handful mushrooms
• 1 tbsp Fajita Seasoning
• Juice ½ lime
• 8 small flour tortilla wraps, warmed
• 4 tablespoons half fat crème fraiche or natural yogurt
• 100 grams (4 ounce) cheddar cheese, grated
• 2 chopped tomatoes
• Handful chopped coriander
• Dollop of guacamole