Easy Slow Cooker Pepper Steak Recipe

Ingredients

• 2 tablespoons olive oil
• 3 pounds beef sirloin, sliced into strips
• 1 tablespoon minced garlic
• 1 onion, chopped
• 0.5 cup soy sauce
• 1 teaspoon salt
• 0.5 teaspoon ground black pepper
• 2 teaspoons white sugar
• 3 green bell peppers, cut into strips
• 1 tablespoon cornstarch
• 0.25 cup cold water