In a large saucepan, add oil on med/high heat and sauté onions for 2 min. Add celery and carrots and stir. Cook for 3 min.
Stir in garlic and tomato paste for 1 min.
Pour chicken broth and water into saucepan and stir until tomato paste dissolves. Cook on high heat and bring to a boil.
Reduce heat to med/high, add potatoes, mushroom, oregano and pepper flakes. Cover with lid and continue to cook for another 10-15 min until potatoes soften.
Once potatoes have softened, add beans, kale and fresh herbs and cook for 2 min. Season with salt and pepper and adjust seasoning as desired. Serve with a slice of toast and enjoy!