Steak Salad with Balsamic Dressing - Zeal and Zest

Ingredients

• 1 medium yellow onion
• 5 small potatoes
• 1.5 cup grape tomatoes
• 10 oz steak
• 1 tsp garlic powder
• 3 tsp kosher salt (divided)
• 2 tsp ground black pepper (divided)
• 2 hearts romaine lettuce
• 2 cups mixed greens
• 4 oz gorgonzola cheese
• 1 tbsp dijon mustard
• 1 clove garlic (diced)
• 1 tsp kosher salt
• 1 tsp ground black pepper
• 1/4 cup balsamic vinegar
• 3/4 cup avocado oil