Ina large skillet on medium heat, warm up a teaspoon of vegetable oil.
Add in carrots and cook for 2 1/2 minutes.
Add in yellow squash and zucchini and cook for another 5 to 10 minutes, until all the vegetables are tender.
In a large saucepan on medium heat, warm up the chicken broth.
Once it is warm, lower the heat and allow it to continue to warm while doing the other steps.
In another skillet, warm up another teaspoon of vegetable oil on medium heat.
Add in onion and cook for about 10 minutes come until the onion is tender and light brown.
Add in thyme and garlic and cook for an additional 2 minutes.
Add in barley and cook for about 3 minutes, until the barley is a little toasted.
Add two cups of warm broth into the barley next, lower the heat, and simmer.
Cook for about 7 minutes, stirring every so often.
Add in the rest of the broth-just half a cup at once, letting the broth absorb.
Add in the rest of your ingredients and cook for an additional 2 minutes.