When I ran sudo apt-get install apt-transport-https, I received the exact same error. I have checked my sources.list and sources.list.d files for syntax errors and for sites that redirect to https, and am still having the same issue. I am connected via a school's ethernet.
To cook filet mignon on a charcoal grill, cook the meat uncovered using medium coals, turn once while grilling, wrap in foil after transferring to a plate, and serve after five minutes. When cooking a 1-inch cut, grill for 10 to 12 minutes to achieve a medium-rare steak and 12 to 15 minutes to achieve medium-done meat.
Filet Mignon Cooking Times. Filet Mignon Cooking Time Chart: For the best results, cook steaks using an accurate Meat Thermometer instead of a timetable. Steaks should be allowed to rest up to 10 minutes before serving. This resting period allows the juiced to distribute in the meat. Keep in mind that your meat will continue to cook while it is resting, so adjust grilling times accordingly (temperature of meat can raise up to 10 degrees).