I went to school in Arkansas in the 60s. The schools had a meal called cowboy rice when I went to school, now I can't find it anywhere. If there is anyone who could help me, I would really appreciate it. Thanks.

What ingredients do you remember? Rice
And meat? Beans? Vegetables? Seasonings? Flavor?

You can try looking through these
cowboy rice recipe - Google Search

Look up tex-mex rice recipes and find common ingredients and test until its similar to what you remember.

I have one for cowboy beans with rice, so here it is:

Yield: 4 servings

1 tablespoon vegetable oil
1 medium onion, chopped
1 medium size green bell pepper, chopped
3 cups cooked rice
2 (15 to 16 ounce) cans pinto beans, drained and rinsed
3/4 cup barbecue sauce

Heat oil in large skillet over medium-high heat until hot. Add onion and green pepper, cook and stir 3 to 5 minutes or until tender. Add rice, beans and barbecue sauce. Simmer 5 to 7 minutes or until thoroughly heated.

NOTE: Add 1/2 pound sliced smoked sausage or 4 frankfurters, sliced for a meaty main dish.

Tell me if it worked, hope it tastes good!