1. Configure basic ingredients: Make sure there are enough basic ingredients such as vegetables, soy products, seafood and meat to choose from. This can meet the needs of customers with different tastes.

2. Control high-priced ingredients: Avoid excessive use of higher-priced ingredients, such as seafood or imported meat. You can choose ingredients that are relatively low-priced but still fresh and high-quality.

3. Provide a wide range of ingredients: Provide a variety of seasonings, dips and sauces, etc., to increase the texture and taste of the food, so that customers can prepare according to their personal preferences.

4. Selected creative dishes: On the premise of ensuring cost control, you can design some creative dishes, such as clever combinations of ordinary ingredients or unique cooking methods, so that customers can enjoy the meal within the price range of 30 yuan. You can taste dishes with different flavors.