Balsamic Roasted Mushrooms with Herby Kale Mashed Potatoes

Name: Balsamic Roasted Mushrooms with Herby Kale Mashed Potatoes
Prep time: 25 min
Cook time: 45 min
Total time: 1 h 10 min
Cuisine: Mediterranean
Ingredients: 1 lb. mushrooms ($2.58); 1 Tbsp olive oil ($0.16); 3 Tbsp balsamic vinegar ($0.33); 1/2 Tbsp brown sugar ($0.02); 1 Tbsp soy sauce ($0.06); 2 cloves garlic, minced ($0.16); 1/4 tsp dried thyme ($0.02); 2 lbs. russet potatoes ($1.08); 6 oz. kale, chopped ($1.68); 1 Tbsp olive oil ($0.16); 3/4 tsp salt, divided ($0.04); 1/2 cup sour cream ($0.45); 1/2 cup milk ($0.17); 1 tsp dried parsley ($0.10); 1/2 tsp dried oregano ($0.05); 1/2 tsp dried basil ($0.05); 1/4 tsp garlic powder ($0.02); 1/4 tsp onion powder ($0.02); freshly cracked pepper ($0.02)