Most veteran RV owners find that planning menus for the trip before you leave the house helps make traveling much easier and more enjoyable. If you plan your meals before you leave, you will know what you need to shop for at home, what you will need to buy along the way, and what additional cooking utensils you will need to take with you for the trip.
You may find it easier to make some meals beforehand, especially if you have a day or two with long drives before you reach your destination. What could be easier than just heating up a homemade dinner after a long day's drive? Trying cooking a large roast with all the fixings a day or two before you plan on leaving. You can enjoy a wonderful meal, make a stew with the leftovers, and then freeze the stew in a plastic container. On a later day, put the frozen meal into the RV galley refrigerator before you hit the road in the morning, and it should be thawed by the time you stop for the evening. Pop it into the microwave for a few minutes and you will have another home-cooked meal in a few minutes.
You can save time and cleanup on mornings you are traveling or trying to get an early start on sightseeing by precooking your bacon before you leave home. Cook it until it's almost done and it will just require a quick turn in the microwave to heat and eat. You will need to plan on eating this within a day or two after you leave home.
Plan your menus for the trip around your activities. If you are going on a wilderness trip where you will be out exploring the wilds during the day, you should plan on having a fairly large, satisfying breakfast with a light carry-along lunch and a larger evening meal. If your plans involve early sightseeing, you may want to plan to have a large breakfast and then buy a light snack at your destination if carrying food is impractical.
Plan on eating at least a couple of meals in restaurants, especially if you are visiting cities that boast unique regional foods. What would a trip to San Antonio, Texas, be without some authentic Tex-Mex cooking, or a trip to New Orleans without some Cajun jambalaya?
Try to plan your menus to take advantage of local produce that may be in season. If you are traveling in any of the southern states, you will find a wide variety of fresh fruits and vegetables available almost year-round, much of it imported from Mexico.
When you have planned your meals for the trip, you can do your initial shopping before you leave home. You can also add any utensils or pots and pans that you may need, but don't normally keep in your RV. When shopping and stocking for your planned meals, pack only what you will need. This is not the place for leftovers. If you have leftovers and don't use them within a day or two, they will usually end up in the trash. With the limited space in RV refrigerators, a lot of leftovers can limit the variety of foods you can carry and make for boring meals.
Be sure to plan several meals that can be cooked outside on either the grill at your campsite or on a portable grill you carry with you. Getting out in the fresh air makes food taste better, and cooking is usually less of a chore and more of an adventure when you use an outdoor grill. If you are traveling in areas where the weather is extremely hot, cooking outside will help keep your rig cooler.