In a large skillet, saute onion, pepper, cloves, orange rind, cumin & chili powder in oil (and Pam if needed) until almost tender. Add orange juice & stir until liquid evaporates.
Add cooked & drained ground beef & stir long enough until flavors have blended together.
Serve with heated flour tortillas & your choice of the followingaccompaniments: chopped tomatoes, shredded lettuce, grated sharp cheddar cheese, sour cream, chopped scallions, salsa, refried beans, tabasco sauce, sliced jalapenos.