Brown chicken, garlic, bacon and shallots in reserved oil, in a pan if your slow cooker doesn't have a sear function

Add all ingredients except pasta, spinach and cheeses. Combine well.

Cook on low for 2 hrs

Mean while boil pasta until just beginning to soften, drain and let cool.

Add pasta to slow cooker, stir through.

Place tea towel under the lid

Cook on low for approximately 2 hrs or until pasta has expanded and sauce has thickened.

Stir in baby spinach leaves.

Layer with cheeses.

Cook on low until cheese has melted.