Educational Grants for Great Starts Act - Amends the Richard B. Russell National School Lunch Act to establish a pilot program to: (1) support before-school activities that advance student academic achievement and that encourage establishing of, or increasing participation in, school breakfast programs; and (2) evaluate the effect before-school activities have on school breakfast program participation. Directs the Secretary of Agriculture, in coordination with the Secretary of Education, to make such program grants to seven State agencies to conduct pilot projects in 17 elementary schools in each such State through subgrants to local educational agencies.