Tex-Mex Caesar Salad

Ingredients

• 1 large head romaine lettuce, washed and torn
• 1 (5-ounce) bag croutons
• 1/2 teaspoon chili powder
• 1/4 teaspoon cumin
• 1 small avocado, diced
• 1/2 cup sour cream
• 2 tablespoons cotija cheese, plus more for garnish
• 1-2 tablespoons lime juice
• 1-2 green onions
• 1 clove garlic, minced
• 1/4 cup fresh cilantro
• 1/2 cup milk
• salt, to taste
• pepper, to taste