These textures need to be varied to keep the meal interesting. The meal should be visually appealing also. The colors and shapes of the foods should be varied and not clash either. A meal of all white foods would be just as bland as a meal of all mushy foods. Pick your menu choices to appeal to the eye as well as to the mouth.
Nutrition Consider the nutritious aspect of the meal also when choosing the foods for the menu.
There is lots of information available about nutrition. But, you would be generally safe if you had one protein food, one starchy food, a fruit or non starchy vegetable, and a bread. The dessert may or may not be taken into consideration when trying to stay nutritious. Most desserts cancel out any good nutrition points earned by the meal. That's why they need to be so sinfully appealing as to wipe out any good intentions on the part of the diner.