In a large pot over medium heat, add olive oil. Add onion, carrots, zucchini, and green beans and sauté until tender, 5 to 6 minutes.
Add garlic and sauté 30 seconds.
Add beans, Italian seasoning, and crushed red pepper flakes and cook for an additional 30 seconds.
Stir in tomato paste and cook ~1 minute.
Add the crushed tomatoes and soy sauce and stir to blend. Reduce the heat to low, cover, and simmer for 30-60 minutes.
Remove from the heat. Season with salt and pepper.
Optional: Put all ingredients in high speed blender/vitamix or use an immersion blender and process till smooth.
Serve garnished with parsley and basil.