T-Bone Steak Dinner with Roasted Vegetables & Garlic Mashed Potatoes
Pan-seared T-bone steak served with garlic mashed potatoes and roasted
asparagus, bell pepper, and zucchini. A complete steakhouse dinner at home.
There's something deeply satisfying about a well-cooked steak dinner —
the sizzle of the cast iron, the aroma of rosemary, and the reward of
a perfectly seared crust. This recipe brings the steakhouse experience
home with a complete plate: juicy T-bone, creamy garlic mashed potatoes,
and colorful roasted vegetables.
The T-bone is really two steaks in one — a strip on one side of the bone
and a tenderloin on the other. A screaming-hot cast iron pan gives you
the best sear, while the bone helps the meat cook evenly and stay juicy.
Pull the steak a few degrees before your target temperature; it will
continue to rise during the 5-minute rest.
Roasting the vegetables at high heat concentrates their flavor and adds
a touch of char. Meanwhile, the garlic mashed potatoes get their richness
from roasted garlic cloves mashed right in — simple but satisfying.
✅ Why This Recipe Is Healthy
- • High protein: ~35g per serving from T-bone steak
- • Colorful vegetables: Asparagus, bell pepper, and zucchini provide fiber and vitamins
- • Potassium-rich: Potatoes and vegetables contribute to a healthy Na:K ratio
- • No added sugar: Whole food ingredients only
📊 Why This Recipe Scored 82/100
With an overall health score of 82/100, this recipe is a solid, balanced option. Its strongest area is sodium balance (93/100), where 380mg of sodium stays comfortably within heart-healthy limits. The main thing holding the score back is blood sugar stability (79/100), because the carbohydrate profile could be slowed with more fiber.
How our scoring worksTrans Fat Warning
This recipe contains 0.6g trans fat per serving. Trans fats increase heart disease risk and should be avoided when possible.
Ingredients
- ✓ 800g t-bone steak
- ✓ 600g yukon gold potato
- ✓ 250g asparagus
- ✓ 1 medium red bell pepper
- ✓ 1 medium zucchini
- ✓ 2 tbsp olive oil
- ✓ 2 tbsp butter
- ✓ 0.25 cup whole milk
- ✓ 6 cloves garlic
- ✓ 1 tbsp fresh rosemary
- ✓ 1 tsp dried thyme
- ✓ 0.5 tsp table salt
- ✓ 0.25 tsp black pepper
Instructions
-
1
Peel and quarter the potatoes. Place in a large pot, cover with cold salted water, and bring to a boil. Cook 12-15 minutes until fork-tender. Drain, then mash with butter, milk, 3 minced roasted garlic cloves, and a pinch of salt until smooth and creamy. Cover to keep warm.
-
2
Preheat the oven to 425°F (220°C). Trim the asparagus and cut into 2-inch pieces. Dice the bell pepper and slice the zucchini into half-moons. Toss the vegetables with olive oil, dried thyme, and a pinch of salt. Spread in a single layer on a sheet pan.
-
3
Roast the vegetables for 18-20 minutes, tossing halfway through, until tender and lightly charred at the edges.
-
4
While the vegetables roast, remove the steaks from the fridge 20 minutes before cooking. Pat completely dry with paper towels and season generously on both sides with salt, pepper, and minced fresh rosemary.
-
5
Heat a cast iron skillet over high heat until smoking. Add a thin film of oil. Sear the steaks, cooking per side based on desired doneness: Rare: 3-4 min/side, pull at 120°F (49°C), rests to 125°F. Medium-rare: 4-5 min/side, pull at 130°F (54°C), rests to 135°F. Medium: 5-6 min/side, pull at 140°F (60°C), rests to 145°F. Medium-well: 6-7 min/side, pull at 150°F (66°C), rests to 155°F. Well done: 7-8 min/side, pull at 160°F (71°C), rests to 165°F. Rest the steaks on a cutting board for 5 minutes before slicing.
-
6
Slice the steak off the bone. Plate each serving with sliced steak, a generous scoop of garlic mashed potatoes, and roasted vegetables. Spoon any pan juices over the steak.
Health Scores
Overall Health Score
Good Stability
Very Low Sodium
Nutrient Dense
Nutrition Facts
Per Serving
Health Highlights
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