Beef Fajitas
["3 lb. tri-tip or bottom sirloin beef", "1/3 c. margarine", "2 medium sized onions, cut into 1/4-inch slices", "2 medium sized green peppers, cut into 1/4-inch slices", "1 Tbsp. seasoning salt", "8 medium tomatoes, cut into wedges", "lemon wedges to garnish"]
["Place meat in shallow pan.", "Pour marinade over and refrigerate 3 hours.", "Remove meat from marinade and cut into 1/2 x 3-inch strips.", "Melt margarine in 1 large skillet.", "Add onions, peppers and seasoning salt; saute until tender.", "Place meat into large cast-iron skillet and sear over medium heat until browned.", "Add vegetables.", "Place tomatoes over both meat and vegetables.", "Garnish with lemon wedges.", "Serves 6."]
["tri-tip", "margarine", "onions", "green peppers", "seasoning salt", "tomatoes", "lemon wedges"]