Utility Rovers for Remote Operations have been a staple of prospecting across many millenia and many worlds. They can be made of many substances; on a partially terraformed world with Earth-origin plants, the Biological Utility Rover for Remote Operations has proven popular and is edible. Additional chemical processing is required to make it palatable, but many Earth-origin shrubs have woody cores that can be used to construct a carbon-based plasma that will trigger the Maillard reactions.
Advantages of the BURRO approach:
- Unlimited range in terraformed areas with water.
- Effective on uneven terrain.
- Waste products can be combusted to produce a morale-enhancing contained plasma reaction.
- Builds morale by empathic connection with pilot.
Disadvantages of the BURRO:
- Limited to terraformed areas with drinkable water
- Low maximum speed
- Small temperature and atmospheric composition range
- Empathic connection with pilot renders consumption traumatic.
- Can go off course at night if not properly secured and it thinks somewhere else is more interesting than where you are.
For a high tech society, the possibility of a bioengineered lifeform that can consume alien organisms and convert them to human-suitable food comes up. That would, of course, have to be tailored to the ecology of the particular host world. For the next step up, the pilot could be modified to be able to consume alien life. This still needs to be host world specific, and is likely two-part: the miner has modifications that make it easy for them to host symbionts, and only the symbionts need to be swapped out per-world.
Now, for a mechanical rover of some sort, the first question is always "why not just make it bigger and add an extra pemmican compartment?". If scouting normally involves bringing a lot of ore/samples back to base and the weather is predictable enough that the satellites can tell you when a dust storm is coming far in advance, that really seems like the best option. But that's not at all what you were asking for.
Light, durable, and strong, dried balsa meat has been used to construct the frames of small aircraft, tent poles, and rovers for centuries. An early product of genetic manipulation, its impact on culture cannot be understated; there is even a Terran tree named after it. You can eat it, though it takes a very long time to soften up enough to chew. It tastes much, much better than the leather hull of your rover or the wings of your glider do. In a pinch the balsa meat wheel-rims can be eaten, though they can lead to poisoning if you've driven through particularly toxic terrain. The repair kit includes several extra panels of hull leather, a full set of six new balsa meat rover wheels, and several balsa meat spars.
The contoured grip on the rover gearshaft and the buttons on your keyboard are made of dried shelf fungus (the internet assures me that I can eat some shelf fungi today), carved into the desired shape and coated with a biologically inert shellac which, while it contains no nutritive value, is perfectly safe to eat. The seat cushions are a plastic foam honeycomb, each cell containing approximately a single meal's worth of various Foods™, perfectly nutritionally balanced. These don't actually taste bad - the deterrent to eating them is the fact that the seat will be a lot less COMFORTABLE once you've eaten all the Szechuan Cream of Wheat, Spicy Minty Peas, and Professional Rose Chili (genetic engineering produced non-flatulence-inducing beans centuries ago, but it turned out that what the market really wanted was not a reduction of flatulence but rather an improvement of aroma.).
Note that atmospheres with high O2 aren't stable in nature; if an unmodified human can breathe the air, there's an ecosystem or some sort of HUGE terraforming engine on the planet - in which case foraging may become relevant. If the atmosphere is not breathable, the scout is going to need very high quality atmosphere regeneration tech. The atmosphere regenerator might also have the ability to output some catalytic chemicals that convert tough and inedible construction materials to digestible form.
Also, while a mining-dominated planet already implies cheap space travel (difficult to imagine raw materials worth taking from Mars to Earth in large amounts, for instance), a single-industry planet only works if space travel is RIDICULOUSLY cheap - say, a giant wormhole with trains to Earth running through it. There will be plenty of other industries at the main base, at least for domestic consumption - farming, for example. If the planet is also in the process of being terraformed the manual for strandees may include instructions for optimum distribution of terran-ecosystem fertilizer and seeds of the seventeen useful plants.