Dice up onion and chipotle peppers.
Brown ground beef in skillet over medium heat on stove top. Half-way through browning ground beef, add onions to the skillet.
Finish browning ground beef and cooking onions. Drain ground beef.
Add tomato sauce, chili powder, cumin, oregano, taco seasoning, salt, and water to ground beef.
Stir ground beef mixture. Simmer mixture til it thickens slightly. Turn on oven to 425 degrees.
Warm one package of street taco shells in the microwave for 20 seconds with a damp paper towel. Flip tacos and microwave for another 20-30 seconds.
Add a tablespoon of beef mixture to the center of the tortilla shell. Add a tablespoon of cheese.
Roll tortilla shell and secure with toothpick. Continue till beef mixture is gone.
Place filled taquitos on baking sheet. Spray taquitos with canola oil. Bake for 15 minutes til browned.
Serve taquitos warm with salsa, sour cream, lettuce, tomatoes or guacamole.