First, prep all the ingredients. You'll need to drain and rinse the canned items. Also, dice the onions and potatoes, chop the sage then mince the garlic before starting. Lastly, half the cherry tomatoes.
Now, in a large pot or dutch oven on medium high heat add a little oil then toss in the diced onion and cherry tomatoes. Cook until translucent and the tomatoes are a little withered then add in the minced garlic. Season lightly with salt and pepper.
Once the garlic is fragrant lower the heat to medium. Now, add in the tomato paste and cook the paste about 30 seconds while mixing it with the ingredients. This removes the metallic taste.
Next, toss in the corn, diced potatoes, chickpeas, sage. Pour in the crushed tomatoes then the vegetable broth. Bring the pot to s boil then simmer.
Before covering the pot add in the balsamic vinegar. Allow the vegetable stew to simmer about 15 minutes covered, stirring occasionally.
Once stew is finished allow to cook a bit then taste for seasoning. You'll need to add more salt and pepper. Serve hot and enjoy.