Youth Heart of Work mission trips
CFCA mission trips for those who sponsor children or elderly in their projects
Glenmary Fathers, used to be called Connective Ministries, now has a new name I forget, but an Appalachian work trip, program geared toward parishes, but you could introduce it to your parish.
Heifer International, has farm experiences for families in US, and also trips to international projects (not Catholic but a very worthy organization)
contact Claretians in Chicago, they have some mission experiences.
the bishops publish a guide each year of volunteer and mission opportunities, and it is broken down by those for various age groups, families etc. when my brain gets in gear I will find the name for you, but try their website.
try Catholic Relief Services as well for links to orders, sites that have such programs.
you might contact dioceses on the Mexican border–Brownsville, Laredo, El Paso, further west–for mission trips into Mexico such as that described above. During spring break we had college kids, high school kids, and families working on the interiors of homes that have been built in Mexico by Winter Texans during the season. the Spring Breakers finish the interiors, build bunks, tables and furniture, and finish roofing and other detail work. We have some families who have been coming every year.