Heat the oven to 200C/fan 180C/gas 6. Toss the ciabatta chunks with 1 tbsp olive oil and some seasoning then bake until crisp and golden. Grill the bacon until crisp. Meanwhile, whisk together the red wine vinegar and mustard with 2 tbsp olive oil and season.
STEP 2
Divide the spinach, avocado, bacon and croutons between 2 plates. Drizzle the dressing over and serve.