I can give you a few tips:
1. When it comes to meat, especially chicken, factory canned dries and rehydrates better than fresh.
2. If you have ground beef recipes, e.g. spaghetti sauce or tacos, make the mix with the flavoring and then dehydrate. If you substitute 30%-50% hydrated Textured Vegetable Protein (TVP) in your mix it helps avoid the "gravel" texture.
3. Rice cooked at home then dehydrated, cooks in minutes much quicker than using raw rice.
4. Dehydrating canned beans (baked beans) works well.