Clams in sautéed tomatoes

Ingredients

• 1kl clams
• 5 big tomatoes, chunked
• 2 thumb-sized ginger, crushed
• 3 cloves garlic, minced
• 1 onion, chopped
• 2 tbsp cooking oil
• spinach , about 2 cups
• salt, to taste
• 2 cups water