Photo of Western burgers with grilled fennel & spiced-up ketchup by WW

Western burgers with grilled fennel & spiced-up ketchup

Total Time
32 min
15 min
17 min
You'll love how quickly and easily the spiced-up ketchup in this recipe comes together. You'll find yourself using it in a variety of ways, from meatloaf to fries to these delicious ground bison burgers. All you have to do is heat up some low-sodium ketchup, red wine vinegar, chopped garlic, and red pepper flakes for a touch of heat. Let it simmer away until it's thickened, then stir in fresh basil for the finishing touch. After grilling sliced fennel bulbs, the bison patties get grilled too, then sprinkled with Parmesan cheese. Build the burgers with the patties, fennel, ketchup, and romaine lettuce for a little bit of crunch and color. It doesn't get much tastier than that.


Cooking spray

4 spray(s)

Low sodium ketchup

½ cup(s), or no-salt-added variety

Red wine vinegar

4 tsp


1 clove(s), minced

Red pepper flakes

tsp, or up to 1/4 tsp

Fresh basil

2 Tbsp, chopped fresh

Uncooked 93% lean ground bison

1 pound(s)

Uncooked fennel bulb

1 medium, sliced

Grated Parmesan cheese

3 Tbsp

Light hamburger bun

4 item(s), split

Romaine lettuce

8 leaf/leaves


  1. Spray grill rack with nonstick spray. Preheat grill to medium-high or prepare medium-high fire.
  2. Meanwhile, to make spiced-up ketchup, combine ketchup, vinegar, garlic, and pepper flakes in small saucepan; bring to boil. Reduce heat and simmer until thickened, about 5 minutes. Stir in basil.
  3. Shape bison into 4 (½-inch-thick) patties.
  4. Place fennel on grill rack and grill, turning occasionally, until lightly charred and tender, about 8 minutes. Transfer to plate. Place patties on grill rack and grill 4 minutes. Turn and sprinkle evenly with Parmesan. Grill burgers until instant-read thermometer inserted into side of burger registers 160°F, about 4 minutes longer. Transfer burgers to plate. Place buns, cut side down, on grill rack and grill until lightly toasted, about 1 minute.
  5. Place bottoms of buns on 4 plates. Top each with one-fourth of fennel, 1 burger, one-fourth of ketchup, and 2 lettuce leaves. Cover with tops of buns.
  6. Serving size: 1 garnished burger