Heat vegetable oil in a large skillet over medium heat.
Sauté onion and garlic until fragrant and translucent.
Add ground beef, cook until browned, and drain excess grease.
Sprinkle chili powder, paprika, cumin, salt, and pepper over beef.
Stir well, and let spices cook briefly for flavour.
Adjust seasonings to your taste.
Warm taco shells as per package instructions.
Spoon seasoned beef into taco shells.
Top with lettuce, tomatoes, cheese, olives, jalapeños, and sour cream.
Serve Jimboy's Tacos immediately while warm.
Enjoy as-is or with Mexican sides like rice, beans, or guacamole.