Chicken, spinach & bacon alfredo pasta bake

Name: Chicken, spinach & bacon alfredo pasta bake
Prep time: 20 min
Cook time: 1 h 25 min
Total time: 1 h 45 min
Cuisine: European, Italian, Mediterranean
Ingredients: 6 smoked streaky bacon rashers; 1 tbsp olive oil; 4 boneless, skinless chicken thighs; ½ tsp dried oregano; 3 garlic cloves crushed; 1 chicken stock cube; 1 heaped tbsp plain flour; 300ml double cream; 500g short pasta (we used rigatoni); 100g parmesan grated; 2 tsp Dijon mustard; 100g baby spinach roughly chopped; large handful of fresh or dried breadcrumbs; 3 tomatoes chopped