Add the green beans to a small saucepan of boiling water. Add a little pinch of salt and simmer for 3-4 minutes until fork tender. Drain completely and steam dry.
Step 2
Whilst the beans are simmering, crush the garlic, finely dice the tomatoes and thinly slice the mushrooms. Heat the olive oil in a skillet over a medium heat. Add the onion, garlic, mushrooms, tomatoes, and Italian seasoning. Stir well to combine and sweat gently for 2-3 minutes until tender and fragrant.
Step 3
Add the green beans to the skillet, season with a little salt and pepper and stir well. Cook for a minute or two more until hot through.